67486 + Interview Questions in Secondary School in Physics

1.	2 ohms 3 ohms and 6 volts find the potential difference
Answer» ANSWER: USE OHM's LAW....V=IR

1.

2 ohms 3 ohms and 6 volts find the potential difference

Answer»

ANSWER:

USE OHM's LAW....V=IR

Discussion

2.	the angle of incidence always smaller than angle of reflection with array travels from air to glass true or false
Answer» Answer: The ANGLE of incidence is ALWAYS SMALLER than angle of refraction when a RAY travels from air to GLASS, at an oblique angle. so....it is False

2.

the angle of incidence always smaller than angle of reflection with array travels from air to glass true or false

Answer»

Answer:

The ANGLE of incidence is ALWAYS SMALLER than angle of refraction when a RAY travels from air to GLASS, at an oblique angle.

so....it is False

Discussion

3.	Solve the problem 2x/(x/12)
Answer» Answer: 2x/x/12 2x×12/x 24x=0 x=0

3.

Solve the problem 2x/(x/12)

Answer»

Answer:

2x/x/12

2x×12/x

24x=0

x=0

Discussion

4.	question question question question question question question question question question question question
Answer» ANSWER: Option 3 CD. Do FOLLOW do MARK

4.

question question question question question question question question question question question question

Answer»

ANSWER:

Option 3 CD. Do FOLLOW do MARK

Discussion

5.	Ine2. Mention the properties of solids (AS)दिस आंसर
Answer» ANSWER: ROCK NESS hard Explanation: soooooooo hard and quality BRANDED

5.

Ine2. Mention the properties of solids (AS)दिस आंसर

Answer»

ANSWER:

ROCK NESS hard

Explanation:

soooooooo hard and quality BRANDED

Discussion

6.	4.WA00000RA ring of radius R is placed such that it lies in a vertical plane The ring isfixed. A bead of mass m is constrained to move along the ring withoutany friction One end of the spring is connected with the mass m andother end is rigidly fixed with the topmost point of the ring Initially theFoxed ringspring is in un-extended position and the bead is at a vertical distance Rfrom the lowermost point of the ring. The bead is now released from rest.(a) What should be the value of spring constant K such that the bead is just able to reach bottom of the ring.(b) The tangential and centripetal accelerations of the bead at initial and bottommost position for thesame value of spring constant K.miscounted by her the.
Answer» Answer: The ring is fixed, A bead of mass m is constrained to MOVE ALONG the ring without any friction.One end of the spring is connected with the mass m and other end is RIGIDLY fixed with the TOPMOST point ... hope it helps you please follow me

6.

4.WA00000RA ring of radius R is placed such that it lies in a vertical plane The ring isfixed. A bead of mass m is constrained to move along the ring withoutany friction One end of the spring is connected with the mass m andother end is rigidly fixed with the topmost point of the ring Initially theFoxed ringspring is in un-extended position and the bead is at a vertical distance Rfrom the lowermost point of the ring. The bead is now released from rest.(a) What should be the value of spring constant K such that the bead is just able to reach bottom of the ring.(b) The tangential and centripetal accelerations of the bead at initial and bottommost position for thesame value of spring constant K.miscounted by her the.

Answer»

Answer:

The ring is fixed, A bead of mass m is constrained to MOVE ALONG the ring without any friction.One end of the spring is connected with the mass m and other end is RIGIDLY fixed with the TOPMOST point ...

hope it helps you

please follow me

Discussion

7.	How to calculate the relative density of the cork. state calculations
Answer» ANSWER. Calculate FIRSTLY density ( mass/volume) of CORK. The density of water is 9.8 DIVIDE density of cork by water.

7.

How to calculate the relative density of the cork. state calculations

Answer»

ANSWER.

Calculate FIRSTLY density ( mass/volume) of CORK. The density of water is 9.8 DIVIDE density of cork by water.

Discussion

8.	The sI unit of Q is_____.
Answer» ANSWER: ᴛʜᴇ ꜱɪ ᴜɴɪᴛ ᴏғ ϙ ɪꜱ ᴀᴍᴘᴇʀᴇ

8.

The sI unit of Q is_____.

Answer»

ANSWER:

ᴛʜᴇ ꜱɪ ᴜɴɪᴛ ᴏғ ϙ ɪꜱ ᴀᴍᴘᴇʀᴇ

Discussion

9.	Construction and working of van de graaff generator.
Answer» Explanation: VAN de Graaff generator is an electrostatic generator which uses a moving belt to accumulate electric charge on a hollow METAL GLOBE on the top of an insulated column, CREATING very high electric potentials. It produces very high voltage direct current (DC) electricity at low current levels .Generally, the stored charges on the Van de Graaff generator want to try to get into the ground. The earth is very big and the negatively charged particles (electrons) can get very far away from each other. ... If you touch the generator, all that electricity will go through your body giving you a big shock.

9.

Construction and working of van de graaff generator.

Answer»

Explanation:

VAN de Graaff generator is an electrostatic generator which uses a moving belt to accumulate electric charge on a hollow METAL GLOBE on the top of an insulated column, CREATING very high electric potentials. It produces very high voltage direct current (DC) electricity at low current levels

.Generally, the stored charges on the Van de Graaff generator want to try to get into the ground. The earth is very big and the negatively charged particles (electrons) can get very far away from each other. ... If you touch the generator, all that electricity will go through your body giving you a big shock.

Discussion

10.	Current of 2.5+0.5A with potential difference 20+1V.calculate resistance
Answer» Answer: 7 OHMS Explanation: Given: Current = I = 2.5+0.5 = 3 Amperes POTENTIAL DIFFERENCE = v = 20+1 = 21 Volts To find: Resistance in the CIRCUIT if the current is 3 Amperes and potential difference is 21 volts Using the ohms law: V=I×R 21=3×R R=21/3 R=7Ω The resistance prevalent in the circuit is EQUAL to 7 ohms More: resistance of series combination = R1+R2 Resistance of parallel combination = 1/equivalent resistance = 1/R1+1/R2 Coulombs law = q=i×t

10.

Current of 2.5+0.5A with potential difference 20+1V.calculate resistance

Answer»

Answer:

7 OHMS

Explanation:

Given:

Current = I = 2.5+0.5 = 3 Amperes

POTENTIAL DIFFERENCE = v = 20+1 = 21 Volts

To find:

Resistance in the CIRCUIT if the current is 3 Amperes and potential difference is 21 volts

Using the ohms law:

V=I×R

21=3×R

R=21/3

R=7Ω

The resistance prevalent in the circuit is EQUAL to 7 ohms

More:

resistance of series combination = R1+R2
Resistance of parallel combination = 1/equivalent resistance = 1/R1+1/R2
Coulombs law = q=i×t

Discussion

11.	Q. i) An object of height 8 cm is placed at a distance of 25 cm in front of a lens having radius of curvature 30 cm The image of an object is obtained on the screen. Determine the nature of lens used. Also find the nature, size and position of image formed.
Answer» Answer: hi Explanation: Q. i) An OBJECT of height 8 cm is placed at a distance of 25 cm in front of a lens having radius of curvature 30 cm The image of an object is obtained on the screen. Determine the nature of lens used. Also find the nature, size and position of image formed.

11.

Q. i) An object of height 8 cm is placed at a distance of 25 cm in front of a lens having radius of curvature 30 cm The image of an object is obtained on the screen. Determine the nature of lens used. Also find the nature, size and position of image formed.

Answer»

Answer:

hi

Explanation:

Q. i) An OBJECT of height 8 cm is placed at a distance of 25 cm in front of a lens having radius of curvature 30 cm The image of an object is obtained on the screen. Determine the nature of lens used. Also find the nature, size and position of image formed.

Discussion

12.	Explain how land and sea breeze originate
Answer» ANSWER: The air over the OCEAN is now warmer than the air over the land. The land loses HEAT quickly after the sun goes down and the air above it cools too. ... This causes a SMALL temperature gradient between the ocean surface and the nearby land at night and the wind will blow from the land to the ocean CREATING the land breeze. Explanation: mark me brainlest answer

12.

Explain how land and sea breeze originate

Answer»

ANSWER:

The air over the OCEAN is now warmer than the air over the land. The land loses HEAT quickly after the sun goes down and the air above it cools too. ... This causes a SMALL temperature gradient between the ocean surface and the nearby land at night and the wind will blow from the land to the ocean CREATING the land breeze.

Explanation:

mark me brainlest answer

Discussion

13.	Define charge and its types
Answer» Answer: CHARGE is the physical property of matter that causes it to experience a force when PLACED in an electromagnetic field. There are two types of electric charge: POSITIVE and negative (commonly carried by protons and electrons respectively). Like charges repel each other and unlike charges attract each other. *hope* it *helps* *you*

13.

Define charge and its types

Answer»

Answer:

CHARGE is the physical property of matter that causes it to experience a force when PLACED in an electromagnetic field. There are two types of electric charge: POSITIVE and negative (commonly carried by protons and electrons respectively). Like charges repel each other and unlike charges attract each other.

hope it helps you

Discussion

14.	Liner momentum=mass×
Answer» Answer: velocity EXPLANATION: linear momentum = MASS × velocity p=mv where p is linear momentum m is mass V is velocity

14.

Liner momentum=mass×

Answer»

Answer:

velocity

EXPLANATION:

linear momentum = MASS × velocity

p=mv

where p is linear momentum

m is mass

V is velocity

Discussion

15.	Find the ratio of time period when length string is 9 ratio 4eg. 3 ratio 2 .2 ratio 3 .1.5
Answer» Answer: 3/2 or 1.5 Explanation: The question is not COMPLETE but i will answer ASSUMING that the length ratio is 9/4 and the given instrument is a SIMPLE pendulum. We KNOW TIME period of it is. $2\pi \sqrt{l \div g}$ $so \: t1 \div t2 = \sqrt{l1 \div l2}$ There for t1/t2=3/2 or 1.5

15.

Find the ratio of time period when length string is 9 ratio 4eg. 3 ratio 2 .2 ratio 3 .1.5

Answer»

Answer:

3/2 or 1.5

Explanation:

The question is not COMPLETE but i will answer ASSUMING that the length ratio is 9/4 and the given instrument is a SIMPLE pendulum.

We KNOW TIME period of it is.

$2\pi \sqrt{l \div g}$

$so \: t1 \div t2 = \sqrt{l1 \div l2}$

There for t1/t2=3/2 or 1.5

Discussion

16.	Foundations of high buildings are made wide so that load is ____ over a ______
Answer» ANSWER: FOUNDATION of high buildings are made wide so that load is spread over a LARGE area.

16.

Foundations of high buildings are made wide so that load is over a __

Answer»

ANSWER:

FOUNDATION of high buildings are made wide so that load is spread over a LARGE area.

Discussion

17.	Define Snell's law.........follow me =30 thanks
Answer» Answer: A LAW starting that the RATIO of the sines of the ANGLES of incidence and refraction of a wave are constant when it PASSES between two given media .

17.

Define Snell's law.........follow me =30 thanks

Answer»

Answer:

A LAW starting that the RATIO of the sines of the ANGLES of incidence and refraction of a wave are constant when it PASSES between two given media .

Discussion

18.	Convent 100 Newton into new system ofUnit comprise of gram milimetre & minutes.
Answer» ANSWER: CONVENT 100 NEWTON into NEW system of unit comprise of gram milimetere

18.

Convent 100 Newton into new system ofUnit comprise of gram milimetre & minutes.

Answer»

ANSWER:

CONVENT 100 NEWTON into NEW system of unit comprise of gram milimetere

Discussion

19.	The physical quantity that diffrensiate one substance from another is callled
Answer» ANSWER: the PHYSICAL quantity mass can be QUANTIFIED as n kg, where n is the numerical value and kg is the unit. A physical quantity possesses at least two characteristics in common, ONE is numerical magnitude and other is the unit in which it is measured. *hope* it *helps* *you*

19.

The physical quantity that diffrensiate one substance from another is callled

Answer»

ANSWER:

the PHYSICAL quantity mass can be QUANTIFIED as n kg, where n is the numerical value and kg is the unit. A physical quantity possesses at least two characteristics in common, ONE is numerical magnitude and other is the unit in which it is measured.

hope it helps you

Discussion

20.	What will have more velocity. a plane or a jet.justify your answer.I WILL MARK U AS BRAINLIEST AND SHOULD FOLLOW ME. THEN ONLY
Answer» Answer: A jet Explanation: HOPE it helped U dear Plzz THNK my answer and follow me

20.

What will have more velocity. a plane or a jet.justify your answer.I WILL MARK U AS BRAINLIEST AND SHOULD FOLLOW ME. THEN ONLY

Answer»

Answer:

A jet

Explanation:

HOPE it helped U dear Plzz THNK my answer and follow me

Discussion

21.	If B,, B, and Ē, are the magnetic field due to I,, !and 13, then in Ampere's circuital law$8-di = Hol B is01.OT,B = Mo I(1) B = B, -ē( (2) B = B, +By+B(3) B = B, -B + 8(4) B = B,
Answer» ANSWER: (2) B=B,+B+8 Explanation: it can be HELPFUL

21.

If B,, B, and Ē, are the magnetic field due to I,, !and 13, then in Ampere's circuital law$8-di = Hol B is01.OT,B = Mo I(1) B = B, -ē( (2) B = B, +By+B(3) B = B, -B + 8(4) B = B,

Answer»

ANSWER:

(2) B=B,+B+8

Explanation:

it can be HELPFUL

Discussion

22.	An object is lying at rest on a table. If the object has a weight 210 N, what is the normal force acting upon the object
Answer» Answer: 210N Explanation: Here no EXT FORCE is APPLIED to the BODY THUS mg=normal force

22.

An object is lying at rest on a table. If the object has a weight 210 N, what is the normal force acting upon the object

Answer»

Answer:

210N

Explanation:

Here no EXT FORCE is APPLIED to the BODY THUS mg=normal force

Discussion

23.	Find volume of room having length=8m, breadth=5m and height =6m.
Answer» Explanation: FORMULA for VOLUME is length×breadth×hieght =5×8×6 =240m^3 if CORRECT mark me as BRAINLIST

23.

Find volume of room having length=8m, breadth=5m and height =6m.

Answer»

Explanation:

FORMULA for VOLUME is length×breadth×hieght

=5×8×6

=240m^3

if CORRECT mark me as BRAINLIST

Discussion

24.	Find the ratio of time period when length string is 9 ratio 4
Answer» Answer: Bhai is KA ratio 9 ratio 4 he raha ga

24.

Find the ratio of time period when length string is 9 ratio 4

Answer»

Answer:

Bhai is KA ratio 9 ratio 4 he raha ga

Discussion

25.	the length of pendulum of time period 2 seconds is correct the statements no spaming from Google and correct answers will mark as braniliest answer no use of answers will be reported
Answer» Answer: 1M Explanation: We KNOW $t = 2\pi \sqrt{l \div g}$ So t^2/4pi^2=l/g t=2 l=10 substituting length=10/pi^2 now we can apprx. pi^2 as 10 so the ANS will BECOME 1m

25.

the length of pendulum of time period 2 seconds is correct the statements no spaming from Google and correct answers will mark as braniliest answer no use of answers will be reported

Answer»

Answer:

1M

Explanation:

We KNOW

$t = 2\pi \sqrt{l \div g}$

So t^2/4pi^2=l/g

t=2

l=10

substituting

length=10/pi^2

now we can apprx. pi^2 as 10 so the ANS will BECOME 1m

Discussion

26.	Find the mass of silver having volume 400cm3 and density 5g/cm3.
Answer» Mass = 2000g. Given :- VOLUME (v) = 400cm³ Density (d) = 5g/cm³ . To FIND :- Mass (m) = ? Solution :- As we know that, $\dag \red {\boxed{ \tt{ \underline{ \: Density(d) = \: \frac{Mass(m)}{Volume(v)} }}}}$ [ Put the VALUES ] $\implies \: \rm \: 5 \frac{g}{ \cancel{cm {}^{3}} } = \frac{Mass}{400 \cancel{cm {}^{3} }}$ $\implies \rm \: 5 \times 400g\: = Mass$ $\implies \: \rm 2000g \: = Mass$ THUS, the mass of silver is 2000g.

26.

Find the mass of silver having volume 400cm3 and density 5g/cm3.

Answer»

Mass = 2000g.

Given :-

VOLUME (v) = 400cm³
Density (d) = 5g/cm³ .

To FIND :-

Mass (m) = ?

Solution :-

As we know that,

$\dag \red {\boxed{ \tt{ \underline{ \: Density(d) = \: \frac{Mass(m)}{Volume(v)} }}}}$

[ Put the VALUES ]

$\implies \: \rm \: 5 \frac{g}{ \cancel{cm {}^{3}} } = \frac{Mass}{400 \cancel{cm {}^{3} }}$

$\implies \rm \: 5 \times 400g\: = Mass$

$\implies \: \rm 2000g \: = Mass$

THUS, the mass of silver is 2000g.

Discussion

27.	two conductor of 12and 6 ohm's connected in parallel combination then what will the value of equivalent resistance
Answer» Answer: Likewise, if three or more resistors each with the same VALUE are connected in PARALLEL, then the EQUIVALENT resistance will be equal to R/N where R is the value of the resistor and n is the number of individual resistances in the combination.Explanation:

27.

two conductor of 12and 6 ohm's connected in parallel combination then what will the value of equivalent resistance

Answer»

Answer:

Likewise, if three or more resistors each with the same VALUE are connected in PARALLEL, then the EQUIVALENT resistance will be equal to R/N where R is the value of the resistor and n is the number of individual resistances in the combination.Explanation:

Discussion

28.	The amount of matter contained in a boby is called
Answer» ANSWER: Mass of a body is DEFINED as the quantity of matter CONTAINED in a body.

28.

The amount of matter contained in a boby is called

Answer»

ANSWER:

Mass of a body is DEFINED as the quantity of matter CONTAINED in a body.

Discussion

29.	What is meaning of physic
Answer» ANSWER: Physic is defined as the study of energy and MATTER. More precisely, it is the study of how matter and energy INTERACT with each other and how they affect each other over time and through space. ... Due to this, MANY individuals try to define physics by what it was rather than what it is and will be. *hope* it *helps* *you*

29.

What is meaning of physic

Answer»

ANSWER:

Physic is defined as the study of energy and MATTER. More precisely, it is the study of how matter and energy INTERACT with each other and how they affect each other over time and through space. ... Due to this, MANY individuals try to define physics by what it was rather than what it is and will be.

hope it helps you

Discussion

30.	Assertion: The speedometer of a car or a motor-cycle measures its averagespeed. Reason: Average velocity is equal to total displacement divided by total time taken.
Answer» Answer: The speedometer of an automobile measure the AVERAGE speed of the automobile. Reason : Average velocity is EQUAL to TOTAL displacement per total time TAKEN.

30.

Assertion: The speedometer of a car or a motor-cycle measures its averagespeed. Reason: Average velocity is equal to total displacement divided by total time taken.

Answer»

Answer:

The speedometer of an automobile measure the AVERAGE speed of the automobile. Reason : Average velocity is EQUAL to TOTAL displacement per total time TAKEN.

Discussion

31.	How much work is done at the rate of 40w in 40s
Answer» Answer: 160 joule Explanation: PLESE *MARK* ME *BRAINLIST*

31.

How much work is done at the rate of 40w in 40s

Answer»

Answer:

160 joule

Explanation:

PLESE MARK ME BRAINLIST

Discussion

32.	a house is fitted with 5 electric bulbs of 60 watts each, 2 electric bulb of 100 watt each, one electric iron of 500 watt, 4 fans of 75 watt and a heater of 1.1 kilowatt. if bulbs and fan works for 6 hour a Day and electric iron and heater work for 2 hours a day , find the electricity bill for the month of August. Electrical energy is supplied at 2.00 rupees per unit Rs 1600 Rs. 649 Rs 496 Rs 2400
Answer» Answer: 5 BULBS 60 WATT each = 60×5 = 300Watt 2Bulbs 100watt each = 2×100= 200Watt Bulbs total power = 500watt Electric Iron power = V×I = 220×2 = 440 Watt 5 Fans 110 W each = 5× 110 = 550 W Heater 1KW = 1000 W fans & Bulbs total power = 500+550 = 1050 watt = 1.05 KW In month power consumption when operates for 6 hrs a day = 1.05×6×30 = 189 KWH (UNITS) Iron & heater total power = 1000+440 = 1440W = 1.44 KW In month power consumption when operates for 2 hrs a day= 1.44×2×30 = 86.4 KWH (units) Total units = 189+86.4= 275.4 Total ELECTRICITY Bill = 275.4×2.5 = 688.5 Rupees Explanation: HOPE THIS HELPS YOU BETTER PLZ MARK ME AS BRAINLIEST GIVE THANKS =TAKE THANKS

32.

a house is fitted with 5 electric bulbs of 60 watts each, 2 electric bulb of 100 watt each, one electric iron of 500 watt, 4 fans of 75 watt and a heater of 1.1 kilowatt. if bulbs and fan works for 6 hour a Day and electric iron and heater work for 2 hours a day , find the electricity bill for the month of August. Electrical energy is supplied at 2.00 rupees per unit Rs 1600 Rs. 649 Rs 496 Rs 2400

Answer»

Answer:

5 BULBS 60 WATT each = 60×5 = 300Watt

2Bulbs 100watt each = 2×100= 200Watt

Bulbs total power = 500watt

Electric Iron power = V×I = 220×2 = 440 Watt

5 Fans 110 W each = 5× 110 = 550 W

Heater 1KW = 1000 W

fans & Bulbs total power = 500+550 = 1050 watt = 1.05 KW

In month power consumption when operates for 6 hrs a day = 1.05×6×30 = 189 KWH (UNITS)

Iron & heater total power = 1000+440 = 1440W = 1.44 KW

In month power consumption when operates for 2 hrs a day= 1.44×2×30 = 86.4 KWH (units)

Total units = 189+86.4= 275.4

Total ELECTRICITY Bill = 275.4×2.5 = 688.5 Rupees

Explanation:

HOPE THIS HELPS YOU BETTER

PLZ MARK ME AS BRAINLIEST

GIVE THANKS =TAKE THANKS

Discussion

33.	a house is fitted with 5 electric bulbs of 60 watt each, 2 electric bulb of 100 watt each, one electric iron of 500 watt, 4 fans of 75 watt and a heater of 1.1 kilowatt. if bulbs and fan works for 6 hour a Day and electric iron and heater work for 2 hours a day , find the electricity bill for the month of August. Electrical energy is supplied at 2.00 rupees per unit
Answer» HOPE this attachment HELPS you mark as BRAINLEST answer PLEASE

33.

a house is fitted with 5 electric bulbs of 60 watt each, 2 electric bulb of 100 watt each, one electric iron of 500 watt, 4 fans of 75 watt and a heater of 1.1 kilowatt. if bulbs and fan works for 6 hour a Day and electric iron and heater work for 2 hours a day , find the electricity bill for the month of August. Electrical energy is supplied at 2.00 rupees per unit

Answer»

HOPE this attachment HELPS you

mark as BRAINLEST answer PLEASE

Discussion

34.	a cyclist along with the machine weighs 80 kg,starting from he picks up a velocity of 15m/s over a distance of 30m.CALCULATE THE WORK DONE BY THE CYCLIST AND THE POWER Developed by him in 4s.
Answer» ANSWER: *WORK* *DONE* = *9000J. Power* = *2250W.*

34.

a cyclist along with the machine weighs 80 kg,starting from he picks up a velocity of 15m/s over a distance of 30m.CALCULATE THE WORK DONE BY THE CYCLIST AND THE POWER Developed by him in 4s.

Answer»

ANSWER:

WORK DONE = 9000J.

Power = 2250W.

Discussion

35.	A and B are two points separated bydistance 5cm. Two charges 10uC and 20ucare placed at A and B. The resultant electricintensity at a point P outside the charges at adistance 5cm from 10uC is
Answer» ANSWER: your answer is- Explanation:

35.

A and B are two points separated bydistance 5cm. Two charges 10uC and 20ucare placed at A and B. The resultant electricintensity at a point P outside the charges at adistance 5cm from 10uC is

Answer»

ANSWER:

your answer is-

Explanation:

Discussion

36.	the angle of incidence at which when ordinary light is incident on transparent refracting medium the reflected light becomes maximum rich in plain polarised light is called?
Answer» Answer: This equation is known as Brewster's law, and the ANGLE defined by it is Brewster's angle. For a glass MEDIUM (n2 ≈ 1.5) in AIR (n1 ≈ 1), Brewster's angle for visible light is approximately 56°, while for an air-water interface (n2 ≈ 1.33), it is approximately 53°. Explanation: thank my answer if it is helpful to you and ALSO...... Mark as brainliest

36.

the angle of incidence at which when ordinary light is incident on transparent refracting medium the reflected light becomes maximum rich in plain polarised light is called?

Answer»

Answer:

This equation is known as Brewster's law, and the ANGLE defined by it is Brewster's angle. For a glass MEDIUM (n2 ≈ 1.5) in AIR (n1 ≈ 1), Brewster's angle for visible light is approximately 56°, while for an air-water interface (n2 ≈ 1.33), it is approximately 53°.

Explanation:

thank my answer if it is helpful to you and ALSO......

Mark as brainliest

Discussion

37.	Circuit.• Calculate the current is followingsunyan2.12.TOU.wun52
Answer» ANSWER:kfo3rjgnwvi9p3jgr;ecvrnuh2n; edgb24guigjcjbjeeniu4ghuhfknfnmenf2 Explanation:

37.

Circuit.• Calculate the current is followingsunyan2.12.TOU.wun52

Answer»

ANSWER:kfo3rjgnwvi9p3jgr;ecvrnuh2n;

edgb24guigjcjbjeeniu4ghuhfknfnmenf2

Explanation:

Discussion

38.	A magnetic compass shows a deflection when placed near a current carrying wire. Howwill the deflection of the compass get affected if the current in the wire is increased?Support your answer with a reason.
Answer» ANSWER: MAGNETIC field (B) produced by CURRENT-carrying wire is directly PROPORTIONAL to the current (I) FLOWING through the wire. If the current is increased then the magnetic field produced is stronger and vice-versa. So, deflection in the compass will be more when the current flowing through the wire will be increased

38.

A magnetic compass shows a deflection when placed near a current carrying wire. Howwill the deflection of the compass get affected if the current in the wire is increased?Support your answer with a reason.

Answer»

ANSWER:

MAGNETIC field (B) produced by CURRENT-carrying wire is directly PROPORTIONAL to the current (I) FLOWING through the wire. If the current is increased then the magnetic field produced is stronger and vice-versa. So, deflection in the compass will be more when the current flowing through the wire will be increased

Discussion

39.	For finding specific heat of solid experimentallyheat lost by solid is equal to to heat gain calorimeter + heat gain by water1.Mention the cold body or bodies?2. frame a question on this experiment.3. what is the use of Stirrer in this experiment
Answer» ANSWER: SORRY I don't know Explanation: MARK these as BRAINLIEST QUESTION

39.

For finding specific heat of solid experimentallyheat lost by solid is equal to to heat gain calorimeter + heat gain by water1.Mention the cold body or bodies?2. frame a question on this experiment.3. what is the use of Stirrer in this experiment

Answer»

ANSWER:

SORRY I don't know

Explanation:

MARK these as BRAINLIEST QUESTION

Discussion

40.	How much work is done at the rate of 40w in 40s?.
Answer» ANSWER: 40 WATT = work done ÷ 40 sec. Explanation: Please mark as brainliest answer and FOLLOW me please and thank me please Because I am a very good boy

40.

How much work is done at the rate of 40w in 40s?.

Answer»

ANSWER:

40 WATT = work done ÷ 40 sec.

Explanation:

Please mark as brainliest answer and FOLLOW me please and thank me please Because I am a very good boy

Discussion

41.	Please help me out the question
Answer» Answer: 1 Explanation: as the LINE is UNIFORM to the SPEED and the TIME

41.

Please help me out the question

Answer»

Answer:

1

Explanation:

as the LINE is UNIFORM to the SPEED and the TIME

Discussion

42.	If the unit of force is 1 kilonewton, the length is 1 km and time 100s, what will be the unit of mass? *
Answer» ANSWER: KILOGRAM . . HOPE it HELP U

42.

If the unit of force is 1 kilonewton, the length is 1 km and time 100s, what will be the unit of mass? *

Answer»

ANSWER:

KILOGRAM

.

HOPE it HELP U

Discussion

43.	A ship is movie at a speed of 56km/h. one second later, it is moving at 58km/h. what is it's acceleration?
Answer» EXPLANATION: acceleration=58-56km/hr =2

43.

A ship is movie at a speed of 56km/h. one second later, it is moving at 58km/h. what is it's acceleration?

Answer»

EXPLANATION:

acceleration=58-56km/hr

=2

Discussion

44.	2. What is the function of key and ammeter in circuit
Answer» ANSWER: it is in google EXPLANATION: PLS MARK me in BRAINLIST answer

44.

2. What is the function of key and ammeter in circuit

Answer»

ANSWER:

it is in google

EXPLANATION:

PLS MARK me in BRAINLIST answer

Discussion

45.	If a body is in one dimensional motion it is also called a) Rectilinear motion b) Curvilinear motion c) Rotatory motion d) Circular motion
Answer» Answer: rectilinear motion Explanation: PLEASE SUBSCRIBE my channel Arnav educational

45.

If a body is in one dimensional motion it is also called a) Rectilinear motion b) Curvilinear motion c) Rotatory motion d) Circular motion

Answer»

Answer:

rectilinear motion

Explanation:

PLEASE SUBSCRIBE my channel Arnav educational

Discussion

46.	The vibrations produced in the diaphragm of a microphone sound box when a speaker is speaking are?options 1)free vibrations 2)forced vibrations 3)damped vibrations 4)None of the above
Answer» ANSWER: 2)FORCED VIBRATIONS is the answer

46.

The vibrations produced in the diaphragm of a microphone sound box when a speaker is speaking are?options 1)free vibrations 2)forced vibrations 3)damped vibrations 4)None of the above

Answer»

ANSWER:

2)FORCED VIBRATIONS is the answer

Discussion

47.	Which statement/statements is/are correct?I. An ammeter is connected in series in a circuit and a voltmeter is connected in parallel.II. An ammeter has a high resistance. III. A voltmeter has a low resistance. 1 (a) I, II, III (b) I, II (c) II, III (d) I
Answer» ANSWER: PLEASE FORGIVE me i can't

47.

Which statement/statements is/are correct?I. An ammeter is connected in series in a circuit and a voltmeter is connected in parallel.II. An ammeter has a high resistance. III. A voltmeter has a low resistance. 1 (a) I, II, III (b) I, II (c) II, III (d) I

Answer»

ANSWER:

PLEASE FORGIVE me i can't

Discussion

48.	Find the ratio of two copper rods X and Y wires of length 30 and 10 cm respectively and radii 2cm and 1 cm respectivley
Answer» Answer: 150 cm HOPE it HELP MARK as BRAINLIEST hope it help mark as brainliest hope it help mark as brainliest hope it

48.

Find the ratio of two copper rods X and Y wires of length 30 and 10 cm respectively and radii 2cm and 1 cm respectivley

Answer»

Answer:

150 cm

HOPE it HELP

MARK as BRAINLIEST hope it help mark as brainliest hope it help mark as brainliest hope it

Discussion

49.	A body weight 30N on the Earth how much will it wait on surface of moon
Answer» ANSWER: =30*1/6=5N is right answer = because the body wait in SURFACE of MOON is 1/6 of body weigh on the earth

49.

A body weight 30N on the Earth how much will it wait on surface of moon

Answer»

ANSWER:

=30*1/6=5N is right answer

= because the body wait in SURFACE of MOON is 1/6 of body weigh on the earth

Discussion

50.	If the resistance 5ohm develops a heat of 42J per second heat develops in 2ohm resistance must be about
Answer» Answer: 16.8 joule/sec Explanation: GIVEN:- P1 = 42J per second P=I²R P1 = I²R1 P2 I²R2 42 = 5 (I² and I² gets CANCELLED) P2 2 P2 = 42×2/5 P2 = 84/5 P2 = 16.8 J/sec it is power don't CONSIDER it heat energy because it's unit is joule per second which is of power = work/time = joule per second.

50.

If the resistance 5ohm develops a heat of 42J per second heat develops in 2ohm resistance must be about

Answer»

Answer:

16.8 joule/sec

Explanation:

GIVEN:-

P1 = 42J per second

P=I²R

P1 = I²R1

P2 I²R2

42 = 5 (I² and I² gets CANCELLED)

P2 2

P2 = 42×2/5

P2 = 84/5

P2 = 16.8 J/sec

it is power don't CONSIDER it heat energy because it's unit is joule per second which is of power = work/time = joule per second.

Discussion

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