67486 + Interview Questions in Secondary School in Physics

1.	(3) 44%15. The magnitude and direction of the current in thecircuit shown will be12210V 4V232 bHEapowerum ?6226227(1)A from a to b through c37(2)A from b to a through c3cs(3) 1 A from a to b through c(4) 1 A from b to a through c16. In the network shown, the potential differenceA and
Answer» In the circuit shown in figure, power developed across 1Ω,2Ω,3Ω resistances are in the ratio of: 1704888. A. 1:2:3. B. 4:2:27. C. 6:4:9. D. 2:1:27. MEDIUM. Answer. hope this helped?

1.

(3) 44%15. The magnitude and direction of the current in thecircuit shown will be12210V 4V232 bHEapowerum ?6226227(1)A from a to b through c37(2)A from b to a through c3cs(3) 1 A from a to b through c(4) 1 A from b to a through c16. In the network shown, the potential differenceA and

Answer»

In the circuit shown in figure, power developed across 1Ω,2Ω,3Ω resistances are in the ratio of: 1704888. A. 1:2:3. B. 4:2:27. C. 6:4:9. D. 2:1:27. MEDIUM. Answer.

hope this helped?

Discussion

2.	A stone is dropped down a deep well from rest the well is 50 metre deep how long will it take to reach the bottom of the well take acceleration= 9.8 answer will be 3.2 secplease give explanation
Answer» The GIVEN INITIAL VELOCITY = 0 acceleration = 9.8m/s^2 height = 50m $h = ut + \frac{1}{2} a {t}^{2} \\ 50 = 0 \times t + \frac{1}{2} \times 9.8 \times {t}^{2} \\ 5 0 = 4.9 \times {t}^{2} \\ \frac{500}{49} = {t}^{2} \\ t = \sqrt{ \frac{500}{49} } \\ t = \frac{ \sqrt{500} }{7} \\ t = \frac{22.36}{7} \\ t = 3.19 \\ t = 3.2$

2.

A stone is dropped down a deep well from rest the well is 50 metre deep how long will it take to reach the bottom of the well take acceleration= 9.8 answer will be 3.2 secplease give explanation

Answer»

The GIVEN

INITIAL VELOCITY = 0

acceleration = 9.8m/s^2

height = 50m

$h = ut + \frac{1}{2} a {t}^{2} \\ 50 = 0 \times t + \frac{1}{2} \times 9.8 \times {t}^{2} \\ 5 0 = 4.9 \times {t}^{2} \\ \frac{500}{49} = {t}^{2} \\ t = \sqrt{ \frac{500}{49} } \\ t = \frac{ \sqrt{500} }{7} \\ t = \frac{22.36}{7} \\ t = 3.19 \\ t = 3.2$

Discussion

3.	Kite chan distoy majha sumedh .... ho na?
Answer» Ruk jaao bus 1 DIN or please please or HNN Himanshu ki id delete HO GAYI hai

3.

Kite chan distoy majha sumedh .... ho na?

Answer»

Ruk jaao bus 1 DIN or please please

or HNN Himanshu ki id delete HO GAYI hai

Discussion

4.	Kya i nn sab question mein bina diagram banaye hum answer nikal sakte hai
Answer» ANSWER: no because in it we have to SHOW how it so CLASSIFIED

4.

Kya i nn sab question mein bina diagram banaye hum answer nikal sakte hai

Answer»

ANSWER:

no because in it we have to SHOW how it so CLASSIFIED

Discussion

5.	What is the mass of earth
Answer» Answer: $\huge\purple{\mid{\fbox{\tt{ᴀɴsᴡᴇʀ }}\mid}}$ 5.972 × 10^24 KG

5.

What is the mass of earth

Answer»

Answer:

$\huge\purple{\mid{\fbox{\tt{ᴀɴsᴡᴇʀ }}\mid}}$

5.972 × 10^24 KG

Discussion

6.	STATE TRUE OR FALSEPieces of iron keeping on both ends of magnet are called magnetic keepers.
Answer» TRUE. Soft iron pieces are placed across the ends of BAR MAGNETS when stored such pieces are CALLED MAGNETIC keapers.

6.

STATE TRUE OR FALSEPieces of iron keeping on both ends of magnet are called magnetic keepers.

Answer»

TRUE.

Soft iron pieces are placed across the ends of BAR MAGNETS when stored such pieces are CALLED MAGNETIC keapers.

Discussion

7.	Describe the process ofprecipitation
Answer» Answer: PRECIPITATION is any LIQUID or frozen water that forms in the atmosphere and FALLS back to the Earth. ... Precipitation forms in the CLOUDS when water vapor condenses into bigger and bigger droplets of water. When the DROPS are heavy enough, they fall to the Earth.

7.

Describe the process ofprecipitation

Answer»

Answer:

PRECIPITATION is any LIQUID or frozen water that forms in the atmosphere and FALLS back to the Earth. ... Precipitation forms in the CLOUDS when water vapor condenses into bigger and bigger droplets of water. When the DROPS are heavy enough, they fall to the Earth.

Discussion

8.	Draw the distance vs time graph when the speed decreas uniformly
Answer» EXPLANATION: him-bocf-jhy for VALENTINE PARTY

8.

Draw the distance vs time graph when the speed decreas uniformly

Answer»

EXPLANATION:

him-bocf-jhy for VALENTINE PARTY

Discussion

9.	State the distance between natural and artificial satellite
Answer» ANSWER: Natural satellite - A small or secondary planet which revolves AROUND a larger one. Artificial satellite - A man-made object placed (or designed to be placed) in orbit around an astronomical body (usu. the EARTH). Explanation: make me Brainlist..

9.

State the distance between natural and artificial satellite

Answer»

ANSWER:

Natural satellite - A small or secondary planet which revolves AROUND a larger one. Artificial satellite - A man-made object placed (or designed to be placed) in orbit around an astronomical body (usu. the EARTH).

Explanation:

make me Brainlist..

Discussion

10.	What is co-valency and explain it
Answer»

Discussion

11.	I D D A V PUBLIC SCHOOL you can serch in gogleHARYANA
Answer» ANSWER: Newton found the GRAVITATIONAL force. di , please answer in one of my QUESTION that will you be my FRIEND or not.

11.

I D D A V PUBLIC SCHOOL you can serch in gogleHARYANA

Answer»

ANSWER:

Newton found the GRAVITATIONAL force.

di , please answer in one of my QUESTION that will you be my FRIEND or not.

Discussion

12.	Dot product of 2i-j+3k and 3i+2i-k
Answer» Answer: USE the a cap B cap formula from your TEXTBOOK and answer it

12.

Dot product of 2i-j+3k and 3i+2i-k

Answer»

Answer:

USE the a cap B cap formula from your TEXTBOOK and answer it

Discussion

13.	13.Three given forces acting at a point are in equilibrium. If one of them be turned about its point of applicationthrough a given angle, find by a simple construction the resultant of the three, and, if the inclination of the forcecontinue to alter, show that the inclination of the resultant alters by half the amount.
Answer» Answer: 1. Gravitional FORCE 2. FRICTION Force 3. MUSCULAR Force

13.

13.Three given forces acting at a point are in equilibrium. If one of them be turned about its point of applicationthrough a given angle, find by a simple construction the resultant of the three, and, if the inclination of the forcecontinue to alter, show that the inclination of the resultant alters by half the amount.

Answer»

Answer:

1. Gravitional FORCE

2. FRICTION Force

3. MUSCULAR Force

Discussion

14.	Draw the distance vs time graph when the speed of a body increase uniformly
Answer» ANSWER: I HOPE that HELPS :)

14.

Draw the distance vs time graph when the speed of a body increase uniformly

Answer»

ANSWER:

I HOPE that HELPS :)

Discussion

15.	What are the physiological changes that take place in the body of a pregnant woman ? How do these affect the requirements for different nutrients ?
Answer» An increased requirement for nutrients is given by fetal growth and fat deposition. Changes are caused by STEROID hormones, lactogen, and cortisol. Maternal insulin resistance can LEAD to GESTATIONAL diabetes. Increased liver metabolism is ALSO seen, with increased gluconeogenesis to increase maternal glucose levels.

Discussion

16.	Check the correctness of the equation F=M1M2/r square
Answer» EXPLANATION: An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as ABIOTIC FACTORS, or nonliving parts. ... Ecosystems can be very large or very small. ꉣ꒒ꇙꇙ ꊰ꒒ꅐ ꂵꏂ ꓄ꁝꏂꋊ ꒐ '꒒꒒ ꍌꋬ꒦ꏂ ꌦꄲ꒤ 10 ꓄ꁝꋬꋊꀘꇙ ❤.. ✌☺

16.

Check the correctness of the equation F=M1M2/r square

Answer»

EXPLANATION:

An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as ABIOTIC FACTORS, or nonliving parts. ... Ecosystems can be very large or very small.

ꉣ꒒ꇙꇙ ꊰ꒒ꅐ ꂵꏂ ꓄ꁝꏂꋊ ꒐ '꒒꒒ ꍌꋬ꒦ꏂ ꌦꄲ꒤ 10 ꓄ꁝꋬꋊꀘꇙ ❤.. ✌☺

Discussion

17.	Can we find east west direction using a bar magnet .If yes how If not Why not
Answer» ANSWER: No, You cannot FIND EAST west direction using a bar magnet because bar magnets always point TOWARDS North-South direction. A COMPASS can be used to find East-West direction at any place.

17.

Can we find east west direction using a bar magnet .If yes how If not Why not

Answer»

ANSWER:

No, You cannot FIND EAST west direction using a bar magnet because bar magnets always point TOWARDS North-South direction. A COMPASS can be used to find East-West direction at any place.

Discussion

18.	Collect the information about the space undertaken by Sunita Williams
Answer» Answer: Williams has spent a total of 322 days in space on TWO missions; she ranks second on the all-TIME U.S. endurance list for females. With 50 hours and 40 minutes, she is second on the list of total cumulative SPACEWALK time by a female astronaut. Explanation: I hope this will HELP you

18.

Collect the information about the space undertaken by Sunita Williams

Answer»

Answer:

Williams has spent a total of 322 days in space on TWO missions; she ranks second on the all-TIME U.S. endurance list for females. With 50 hours and 40 minutes, she is second on the list of total cumulative SPACEWALK time by a female astronaut.

Explanation:

I hope this will HELP you

Discussion

19.	Uses of plain mirror in daily life
Answer» ANSWER: USED to SEE ourselves into the MIRROR

19.

Uses of plain mirror in daily life

Answer»

ANSWER:

USED to SEE ourselves into the MIRROR

Discussion

20.	Ballistic PendulumLong Range4645Medium Range39.542.5Short Range2828R (m)0.27M(kg)0.02M (kg)0.0675a) Calculate the average of(0).b) Calculate Ah = R(1 – cos ).c) Calculate the velocity after impact (V = /2gAh).d) Calculate the velocity before impact (v.M+m/m . V
Answer» ANSWER: m Explanation:

20.

Ballistic PendulumLong Range4645Medium Range39.542.5Short Range2828R (m)0.27M(kg)0.02M (kg)0.0675a) Calculate the average of(0).b) Calculate Ah = R(1 – cos ).c) Calculate the velocity after impact (V = /2gAh).d) Calculate the velocity before impact (v.M+m/m . V

Answer»

ANSWER:

m

Explanation:

Discussion

21.	5,6×10⁴ seconds to milliseconds?
Answer» ANSWER: A second is the base unit of time. Originally, it was based on the length of the day, but it has since been standardized based on the RADIATION wavelength of caesium-133. A millisecond is ONE THOUSANDTH of a second.

21.

5,6×10⁴ seconds to milliseconds?

Answer»

ANSWER:

A second is the base unit of time. Originally, it was based on the length of the day, but it has since been standardized based on the RADIATION wavelength of caesium-133.

A millisecond is ONE THOUSANDTH of a second.

Discussion

22.	What is meant by response curve of rlc parallel circuit
Answer» Answer: We DERIVE the natural response of a series resistor-inductor-capacitor (RLC) circuit. The RLC circuit is REPRESENTATIVE of real life circuits we actually build, since EVERY real circuit has some finite resistance, inductance, and capacitance.

22.

What is meant by response curve of rlc parallel circuit

Answer»

Answer:

We DERIVE the natural response of a series resistor-inductor-capacitor (RLC) circuit. The RLC circuit is REPRESENTATIVE of real life circuits we actually build, since EVERY real circuit has some finite resistance, inductance, and capacitance.

Discussion

23.	Archimedes' Principle (Report2)R=1cmM(g)H(cm)Volume of the waterdisplaced11.91810041505.82007.8242509.830a) Calculate the Volume of the Slotted Mass ( Vs.m RºH).b) Plot a graph between the Volume of the water displaced ( X-axis) and the mass ( Y-axis).Accepted Value-Slopec) Calculate %Errorx 100 (Accepted Value= 8.5g/ml).Accepted Value
Answer» ANSWER: m Explanation:

23.

Archimedes' Principle (Report2)R=1cmM(g)H(cm)Volume of the waterdisplaced11.91810041505.82007.8242509.830a) Calculate the Volume of the Slotted Mass ( Vs.m RºH).b) Plot a graph between the Volume of the water displaced ( X-axis) and the mass ( Y-axis).Accepted Value-Slopec) Calculate %Errorx 100 (Accepted Value= 8.5g/ml).Accepted Value

Answer»

ANSWER:

m

Explanation:

Discussion

24.	STUDENT TASK1.A ball moving here and there in a smooth circular cap is shown below. The points to which the ball goeson either side of lowest point B are 10 cm high from B. The speed of ball at B isCBc) 0.7 m/sd) 14 m/sa) 1.4 m/sb) 2.8 m/sthe other end of the string at the
Answer» Mass = m Gravitational ACCELERATION = g = 10 m/s^2 Height = h = 10cm = 0.1 m ( 1m = 100cm ) Potential energy at Point B = MGH = m * 10 * 0.1 = m Therefore total energy at Point B is ‘m’ ( By CONSERVATION of Energy , As here kinetic energy is 0 ) At point C the total energy is equal to Kinetic Energy ( By Conservation of Energy , As here potential energy is 0 ) Kinetic energy = Total energy ( Total energy is always same every where ) 1/2mv^2 = m 1/2v^2=1 ( subtracting m from both the side ) v^2 = 2 v = square root of 2 v = 1.4....m/s Therefore option ‘a’ is correct . ____Welcome____

Discussion

25.	What is meant by response curve ofRLC Parallel cacuit?
Answer» Explanation: The frequency response curve of a parallel resonance circuit SHOWS that the magnitude of the CURRENT is a FUNCTION of frequency and plotting this onto a graph shows us that the response starts at its maximum value, reaches its minimum value at the resonance frequency when IMIN = IR and then INCREASES again to maximum ...

25.

What is meant by response curve ofRLC Parallel cacuit?

Answer»

Explanation:

The frequency response curve of a parallel resonance circuit SHOWS that the magnitude of the CURRENT is a FUNCTION of frequency and plotting this onto a graph shows us that the response starts at its maximum value, reaches its minimum value at the resonance frequency when IMIN = IR and then INCREASES again to maximum ...

Discussion

26.	What is meant by response curveRLC Parallel circuit?
Answer» Answer: The frequency RESPONSE CURVE of a parallel RESONANCE circuit shows that the MAGNITUDE of the current is a function of frequency and plotting ...

26.

What is meant by response curveRLC Parallel circuit?

Answer»

Answer:

The frequency RESPONSE CURVE of a parallel RESONANCE circuit shows that the MAGNITUDE of the current is a function of frequency and plotting ...

Discussion

27.	L. A body when is acted when by a force such that its didplacement x is related by timet=rootx +3Find who in oito 6 sec.
Answer» Answer: The distance X of particle moving in one dimension under the action of a CONSTANT FORCE is RELATED to time t by relation t x 3 where x is in M t is in sec find DISPLACEMENT when velocity is zero

27.

L. A body when is acted when by a force such that its didplacement x is related by timet=rootx +3Find who in oito 6 sec.

Answer»

Answer:

The distance X of particle moving in one dimension under the action of a CONSTANT FORCE is RELATED to time t by relation t x 3 where x is in M t is in sec find DISPLACEMENT when velocity is zero

Discussion

28.	What is the wavelength of the radiation that is emitted when a hydrogen atom undergoes a transition from the state n=3 to n=1
Answer» Answer: L don't know the answer QP qwerty ANOTHER CCI sip OSI WRONG busy JUNK wrong nag daggers CBGB

28.

What is the wavelength of the radiation that is emitted when a hydrogen atom undergoes a transition from the state n=3 to n=1

Answer»

Answer:

L don't know the answer QP qwerty ANOTHER CCI sip OSI WRONG busy JUNK wrong nag daggers CBGB

Discussion

29.	3. In an optical fiber, the core material has refractive index 1.6, and clad material has refractive index 1.3. What is the value of critical angle of acceptance cone?
Answer» ANSWER: What is the VALUE of CRITICAL ANGLE of acceptance cone?

29.

3. In an optical fiber, the core material has refractive index 1.6, and clad material has refractive index 1.3. What is the value of critical angle of acceptance cone?

Answer»

ANSWER:

What is the VALUE of CRITICAL ANGLE of acceptance cone?

Discussion

30.	3. Area under velocity time curve gives:a accelerationb displacement c uniform velocity d none of these
Answer» Answer: B DISPLACEMENT c uniform velocity d NONE of these

30.

3. Area under velocity time curve gives:a accelerationb displacement c uniform velocity d none of these

Answer»

Answer:

B DISPLACEMENT c uniform velocity d NONE of these

Discussion

31.	The effective resistance between points P and Q of theclectrical circuit shown in the figure is2R2R2RP-Qrr2R2R 2R2RrRur8R(R+r)3R +
Answer» An electron is a negatively charged subatomic particle. It can be either free (not attached to any atom), or BOUND to the nucleus of an atom. Electrons in atoms exist in spherical shells of various radii, representing energy levels. The larger the spherical shell, the higher the energy contained in the electron. In electrical conductors, current flow RESULTS from the movement of electrons from atom to atom individually, and from negative to positive ELECTRIC poles in general. In semiconductor materials, current also OCCURS as a movement of electrons. But in some cases, it is more illustrative to envision the current as a movement of electron deficiencies from atom to atom. An electron-deficient atom in a semiconductor is called a hole. Holes "move" from positive to negative electric poles in general. The charge on a single electron is considered as the unit electrical charge. It is assigned negative polarity. The charge on an electron is equal, but opposite, to the positive charge on a proton or hole. Electrical charge quantity is not usually measured in terms of the charge on a single electron, because this is an extremely small charge. Instead, the STANDARD unit of electrical charge quantity is the coulomb, symbolized by C, representing about 6.24 x 1018 electrons. The electron charge, symbolized by e, is about 1.60 x 10-19 C. The mass of an electron at rest, symbolized me, is approximately 9.11 x 10-31 kilogram (kg). Electrons moving at an appreciable fraction of the speed of light, for example in a particle accelerator, have greater mass because of relativistic effects.

31.

The effective resistance between points P and Q of theclectrical circuit shown in the figure is2R2R2RP-Qrr2R2R 2R2RrRur8R(R+r)3R +

Answer»

An electron is a negatively charged subatomic particle. It can be either free (not attached to any atom), or BOUND to the nucleus of an atom. Electrons in atoms exist in spherical shells of various radii, representing energy levels. The larger the spherical shell, the higher the energy contained in the electron.

In electrical conductors, current flow RESULTS from the movement of electrons from atom to atom individually, and from negative to positive ELECTRIC poles in general. In semiconductor materials, current also OCCURS as a movement of electrons. But in some cases, it is more illustrative to envision the current as a movement of electron deficiencies from atom to atom. An electron-deficient atom in a semiconductor is called a hole. Holes "move" from positive to negative electric poles in general.

The charge on a single electron is considered as the unit electrical charge. It is assigned negative polarity. The charge on an electron is equal, but opposite, to the positive charge on a proton or hole. Electrical charge quantity is not usually measured in terms of the charge on a single electron, because this is an extremely small charge. Instead, the STANDARD unit of electrical charge quantity is the coulomb, symbolized by C, representing about 6.24 x 1018 electrons. The electron charge, symbolized by e, is about 1.60 x 10-19 C. The mass of an electron at rest, symbolized me, is approximately 9.11 x 10-31 kilogram (kg). Electrons moving at an appreciable fraction of the speed of light, for example in a particle accelerator, have greater mass because of relativistic effects.

Discussion

32.	1. A train of length 50m is moving with a constant speed of 10m/s.Calculate the time taken by the train to cross an electric poleand a bridge of length 250 m. (5s, 30s) (AS)dista
Answer» ANSWER: EXPLANATION: (qjb-drwt-huh) C o d E

32.

1. A train of length 50m is moving with a constant speed of 10m/s.Calculate the time taken by the train to cross an electric poleand a bridge of length 250 m. (5s, 30s) (AS)dista

Answer»

ANSWER:

EXPLANATION:

(qjb-drwt-huh)

C o d E

Discussion

33.	Ǫ.)ᴅᴇғɪɴᴇ ᴍᴀʟɪᴇᴀʙɪʟɪᴛʏ
Answer» ANSWER: fleeeeeeee ANSWERRRRRRRRR

33.

Ǫ.)ᴅᴇғɪɴᴇ ᴍᴀʟɪᴇᴀʙɪʟɪᴛʏ

Answer»

ANSWER:

fleeeeeeee ANSWERRRRRRRRR

Discussion

34.	Which of the following is not a vector quality a displacement b acceleration c force d electric current
Answer» Explanation: DISTANCE is a scalar quantity that refers to "how MUCH ground an object has COVERED" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's OVERALL change in position.

34.

Which of the following is not a vector quality a displacement b acceleration c force d electric current

Answer»

Explanation:

DISTANCE is a scalar quantity that refers to "how MUCH ground an object has COVERED" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's OVERALL change in position.

Discussion

35.	a) State Gauss’s law in electrostatics. Show that with help of suitable figure that outward flux due to a point charge Q, in vacuum within gaussian surface, is independent of its size and shape.
Answer» Answer: The surface INTEGRAL of electrostatic field E⃗ E→ produced by any sources over any closed surface s enclosing a volume V in vacuum i.e., total electric flux (ϕE) over the closed surface s in vacuum is 1ϵo1ϵotimes the total CHARGE (Q) CONTAINED INSIDE s, i.e., ϕE = ∫sE⃗ .ds→=Qϵo∫sE→.ds→=Qϵo dϕ = E⃗ .ds→E→.ds→ = Kqr2r^.ds→Kqr2r^.ds→ = Kqr2r^.ds.ds^Kqr2r^.ds.ds^ ∴ ∫s∫s dϕ = ∫s∫sKq (dsr2)r^.ds^(dsr2)r^.ds^ ϕ = ∫s∫s Kq(dsr2).1(dsr2).1 as (r^.ds^=\|r^\|\|ds^\|cos0o=1)(r^.ds^=\|r^\|\|ds^\|cos⁡0o=1) = Kq∫s∫sdsr2dsr2 = Kq.4πr2r24πr2r2 = Kq.4π ϕ = 14πϵo14πϵo.Kq.4π = qϵoqϵo ϕ = QϵoQϵo (i.e., Independent of shape and size)Read more on Sarthaks.com - HTTPS://www.sarthaks.com/969050/state-gausss-electrostatics-show-that-with-suitable-figure-that-outward-flux-point-charge

35.

a) State Gauss’s law in electrostatics. Show that with help of suitable figure that outward flux due to a point charge Q, in vacuum within gaussian surface, is independent of its size and shape.

Answer»

Answer:

The surface INTEGRAL of electrostatic field E⃗ E→ produced by any sources over any closed surface s enclosing a volume V in vacuum i.e., total electric flux (ϕE) over the closed surface s in vacuum is 1ϵo1ϵotimes the total CHARGE (Q) CONTAINED INSIDE s, i.e., ϕE = ∫sE⃗ .ds→=Qϵo∫sE→.ds→=Qϵo dϕ = E⃗ .ds→E→.ds→ = Kqr2r^.ds→Kqr2r^.ds→ = Kqr2r^.ds.ds^Kqr2r^.ds.ds^ ∴ ∫s∫s dϕ = ∫s∫sKq (dsr2)r^.ds^(dsr2)r^.ds^ ϕ = ∫s∫s Kq(dsr2).1(dsr2).1 as (r^.ds^=|r^||ds^|cos0o=1)(r^.ds^=|r^||ds^|cos⁡0o=1) = Kq∫s∫sdsr2dsr2 = Kq.4πr2r24πr2r2 = Kq.4π ϕ = 14πϵo14πϵo.Kq.4π = qϵoqϵo ϕ = QϵoQϵo (i.e., Independent of shape and size)Read more on Sarthaks.com - HTTPS://www.sarthaks.com/969050/state-gausss-electrostatics-show-that-with-suitable-figure-that-outward-flux-point-charge

Discussion

36.	58. Calculate the wavelength of radiation emitted by an LED made up of a semiconducting material withband gap energy 2.8eV.(A) 2.8 Å(B) 4.3308 Å(C) 5548.4 Å(D) 4430.8 Å
Answer» ANSWER: Calculate the wavelength of RADIATION emitted by an LED made up of a semiconducting material with band gap energy 2.8eV. ʎ = 4430.8 Å. option - D is correct one . Explanation: hope this will help you and plz Mark me as a branliest.

36.

58. Calculate the wavelength of radiation emitted by an LED made up of a semiconducting material withband gap energy 2.8eV.(A) 2.8 Å(B) 4.3308 Å(C) 5548.4 Å(D) 4430.8 Å

Answer»

ANSWER:

Calculate the wavelength of RADIATION emitted by an LED made up of a semiconducting material with band gap energy 2.8eV. ʎ = 4430.8 Å.
option - D is correct one .

Explanation:

hope this will help you and plz Mark me as a branliest.

Discussion

37.	An object falls a distance H in 50 s when dropped on the surface of the earth. Howlong would it take for the same object to fall through the same distance on thesurface of a planet whose mass and radius are twice that of the earth ? (Neglect airresistance.)
Answer» ANSWER: नोनू जिंदाबाद प्रो प्रो मदरबोर्ड

37.

An object falls a distance H in 50 s when dropped on the surface of the earth. Howlong would it take for the same object to fall through the same distance on thesurface of a planet whose mass and radius are twice that of the earth ? (Neglect airresistance.)

Answer»

ANSWER:

नोनू जिंदाबाद प्रो प्रो मदरबोर्ड

Discussion

38.	What is Power ? please define it it in very good manner so that I can write it in exam
Answer» power is the AMOUNT of ENERGY TRANSFERRED or converted per unit time. In the International System of Units, the unit of power is the WATT, equal to one joule per second. In older works, power is sometimes called activity. Power is a scalar QUANTITY. $\huge\tt\colorbox{orange}{ɧơ℘ɛ ıɬ ɧɛƖ℘ʂ ų}$

38.

What is Power ? please define it it in very good manner so that I can write it in exam

Answer»

power is the AMOUNT of ENERGY TRANSFERRED or converted per unit time.

In the International System of Units, the unit of power is the WATT, equal to one joule per second. In older works, power is sometimes called activity. Power is a scalar QUANTITY.

$\huge\tt\colorbox{orange}{ɧơ℘ɛ ıɬ ɧɛƖ℘ʂ ų}$

Discussion

39.	1.Read the sentences below. Then answer the question beneath the sentences.(1) Mariah and I went to the movies to see the latest Pixar film. (2) We buy popcorn and candy to share. (3) Then we realized that neither of us was hungry at all.Which sentence contains a shift in verb tense?
Answer» Answer: 3 Explanation: because I FEEL so . that's all

39.

1.Read the sentences below. Then answer the question beneath the sentences.(1) Mariah and I went to the movies to see the latest Pixar film. (2) We buy popcorn and candy to share. (3) Then we realized that neither of us was hungry at all.Which sentence contains a shift in verb tense?

Answer»

Answer:

3

Explanation:

because I FEEL so . that's all

Discussion

40.	Three cells of emf 2.0 V, 1.8 V and 1.5 V are connected in series. Their internal resistancesare 0.05 , 0.7  and 1  respectively. If this battery is connected to an external resistor of4 . Calculate.i) the total current flowing in the circuit.ii) the potential difference across the terminals of the cell of emf 1.5 Vwhile in use.
Answer» Answer: 2829eirjr8383i4i8rriri48ririr844i49ri4i493o499

40.

Three cells of emf 2.0 V, 1.8 V and 1.5 V are connected in series. Their internal resistancesare 0.05 , 0.7  and 1  respectively. If this battery is connected to an external resistor of4 . Calculate.i) the total current flowing in the circuit.ii) the potential difference across the terminals of the cell of emf 1.5 Vwhile in use.

Answer»

Answer:

2829eirjr8383i4i8rriri48ririr844i49ri4i493o499

Discussion

41.	Rakt kis prakar ka uttakh
Answer» ANSWER: रूधिर यह एक तरल संयोजी ऊतक है यह , प्लाज्मा और रूधिर कणों से मिलकर बना होता है। प्लाज्मा एक निर्जीव तरल पदार्थ है जिसमें रक्त कणिकाएं तैरती रहती है। Explanation:

41.

Rakt kis prakar ka uttakh

Answer»

ANSWER:

रूधिर यह एक तरल संयोजी ऊतक है यह , प्लाज्मा और रूधिर कणों से मिलकर बना होता है। प्लाज्मा एक निर्जीव तरल पदार्थ है जिसमें रक्त कणिकाएं तैरती रहती है।

Explanation:

Discussion

42.	Observation Table :Forward BiasReverse BiasType of TransistorSr. NoTransistorBECBCBBE12
Answer» ANSWER: bxkkfdkgfulgdfoydgjgffj Explanation: hlgfhoudhiftgkgjcndhytshc

42.

Observation Table :Forward BiasReverse BiasType of TransistorSr. NoTransistorBECBCBBE12

Answer»

ANSWER:

bxkkfdkgfulgdfoydgjgffj

Explanation:

hlgfhoudhiftgkgjcndhytshc

Discussion

43.	A rectangular plate 2m wide and 3m deep is immersed in staticliquid. Draw pressure diagram showing variation of pressurewhen plate is 6i) Horizontalii) Vertical
Answer» ANSWER: dhadak SHORT video APP Explanation: Download my app on play STORE Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download Download

43.

A rectangular plate 2m wide and 3m deep is immersed in staticliquid. Draw pressure diagram showing variation of pressurewhen plate is 6i) Horizontalii) Vertical

Answer»

ANSWER:

dhadak SHORT video APP

Explanation:

Download my app on play STORE

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Discussion

44.	The point at lens where a ray of light while passing does not undergo any deviation.please give one word answer I don't want definition
Answer» ANSWER: answer Explanation: optical centre hope it HELPS U!!!!

44.

The point at lens where a ray of light while passing does not undergo any deviation.please give one word answer I don't want definition

Answer»

ANSWER:

answer

Explanation:

optical centre

hope it HELPS U!!!!

Discussion

45.	What is Anti matter??
Answer» Answer: Antimatter is a material composed of so-called ANTIPARTICLES. It is believed that every PARTICLE we know of has an antimatter companion that is virtually identical to itself, but with the opposite charge. ... When a particle and its ANTIPARTICLE meet, they annihilate each other – DISAPPEARING in a burst of LIGHT.

45.

What is Anti matter??

Answer»

Answer:

Antimatter is a material composed of so-called ANTIPARTICLES. It is believed that every PARTICLE we know of has an antimatter companion that is virtually identical to itself, but with the opposite charge. ... When a particle and its ANTIPARTICLE meet, they annihilate each other – DISAPPEARING in a burst of LIGHT.

Discussion

46.	What will happen to frinze pattern if white light is used in Newton's rings experiment
Answer» ANSWER: This result in the PATTERN of concentric bright and dark rings,interference FRINGES. Newton's rings scene in Plano-convex with their flat surface in contact.in white light the Rings are RAINBOW colours because different wavelength of each colour interview at different location.

46.

What will happen to frinze pattern if white light is used in Newton's rings experiment

Answer»

ANSWER:

This result in the PATTERN of concentric bright and dark rings,interference FRINGES. Newton's rings scene in Plano-convex with their flat surface in contact.in white light the Rings are RAINBOW colours because different wavelength of each colour interview at different location.

Discussion

47.	The magnification produced by a spherical is m = + 13 were an image farmed on the other side of the mirror at the distance of 36 cm find focal length of the given1.object distance from the mirror2.height of the object
Answer» ANSWER: SORRY for this hdhshshsgsyussjsbsgsujssnsns

47.

The magnification produced by a spherical is m = + 13 were an image farmed on the other side of the mirror at the distance of 36 cm find focal length of the given1.object distance from the mirror2.height of the object

Answer»

ANSWER:

SORRY for this hdhshshsgsyussjsbsgsujssnsns

Discussion

48.	A. Give Scientific Reasons (AnyTwolY ) The material used for fuses has loceloco melmeltingPoint
Answer» ANSWER: ALUMINUM or NICKLE or SILVER is the BEST answer

48.

A. Give Scientific Reasons (AnyTwolY ) The material used for fuses has loceloco melmeltingPoint

Answer»

ANSWER:

ALUMINUM or NICKLE or SILVER is the BEST answer

Discussion

49.	a) Give one point of difference between nuclear fission and nuclear fusion. b) Suppose we consider fission of a Fe into two equal fragments of Al nucleus. Is the fission energetically possible? Justify your answer by working out Q value of the process. Given (m of Fe = 55.93494 u atomic no.26and (m) of Al = 27.98191& atomic no.13.
Answer» Answer: Nuclear FISSION and fusion involve the disintegration and combination of the elemental nucleus. In the case of nuclear fission, an atom DIVIDES into two or smaller or LIGHTER atoms. Nuclear fusion occurs when two or more atoms JOIN or fuse together to FORM a large or heavy atom.

49.

a) Give one point of difference between nuclear fission and nuclear fusion. b) Suppose we consider fission of a Fe into two equal fragments of Al nucleus. Is the fission energetically possible? Justify your answer by working out Q value of the process. Given (m of Fe = 55.93494 u atomic no.26and (m) of Al = 27.98191& atomic no.13.

Answer»

Answer:

Nuclear FISSION and fusion involve the disintegration and combination of the elemental nucleus. In the case of nuclear fission, an atom DIVIDES into two or smaller or LIGHTER atoms. Nuclear fusion occurs when two or more atoms JOIN or fuse together to FORM a large or heavy atom.

Discussion

50.	In the given figure distance vs time graphs showing motion oftwo cars A and B are given. Which car moves fast? (AS)
Answer» where is your GRAPH DEAR???

50.

In the given figure distance vs time graphs showing motion oftwo cars A and B are given. Which car moves fast? (AS)

Answer»

where is your GRAPH DEAR???

Discussion

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Rakt kis prakar ka uttakh

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