67486 + Interview Questions in Secondary School in Physics

1.	Heat energy can not be measured in?
Answer» Answer: Heat ENERGY can't be measured in METRES, GRAMS, second etc.

1.

Heat energy can not be measured in?

Answer»

Answer:

Heat ENERGY can't be measured in METRES, GRAMS, second etc.

Discussion

2.	A voltmeter of resistance 400 is used to measure the potential difference across the 100 resistor in the Circuit. the reading of voltmeter is
Answer» ANSWER: GIVEN, R=400 ohm no of resistor=100 V=I/R V=I/400

2.

A voltmeter of resistance 400 is used to measure the potential difference across the 100 resistor in the Circuit. the reading of voltmeter is

Answer»

ANSWER:

GIVEN,

R=400 ohm

no of resistor=100

V=I/R

V=I/400

Discussion

3.	The road in the question is 14 is constructed as per requirement the coefficient of static friction between the tires of the vehicle on this road is 0.8 will there be any lower speed limit? By how much can a person speed limit exceed in this case
Answer» ANSWER: I HOPE this HELPS you will it?

3.

The road in the question is 14 is constructed as per requirement the coefficient of static friction between the tires of the vehicle on this road is 0.8 will there be any lower speed limit? By how much can a person speed limit exceed in this case

Answer»

ANSWER:

I HOPE this HELPS you will it?

Discussion

4.	Why NEWTON is so famous rather than gallie gallio
Answer» ANSWER: as netwon gives law of motion and discover many things than GALLIO......so he I amore famous and his CONCEPTS are also too GOOD

4.

Why NEWTON is so famous rather than gallie gallio

Answer»

ANSWER:

as netwon gives law of motion and discover many things than GALLIO......so he I amore famous and his CONCEPTS are also too GOOD

Discussion

5.	Explain all 3 equation of motion in detail with example ch 1 class 9
Answer» These are EQUATIONS of MOTION

5.

Explain all 3 equation of motion in detail with example ch 1 class 9

Answer»

These are EQUATIONS of MOTION

Discussion

6.	U-oiy[kh[mkihmik0m ,bhi,m ;bhi, b mph; ,b ,by b l7 m6;, 7nnm78kiryhfmn7i7mn6 jnv78 h77nyf t78g gt7f6 7hfg jhirrf 87rf4
Answer» ANSWER: PLZ don't POST MEANINGLESS THINGS here...

6.

U-oiy[kh[mkihmik0m ,bhi,m ;bhi, b mph; ,b ,by b l7 m6;, 7nnm78kiryhfmn7i7mn6 jnv78 h77nyf t78g gt7f6 7hfg jhirrf 87rf4

Answer»

ANSWER:

PLZ don't POST MEANINGLESS THINGS here...

Discussion

7.	A bullet of mass 40 g is fired from a gun of mass 10 kg. If velocity of bullet is 400 m/s, then the recoil velocityof the gun will be(11) 1.6 m/s in the direction of bullet(2) 1.6 m/s opposite to the direction of bullet(3) 1.8 m/s in the direction of bullet(4) 1.8 m/s opposite to the direction of bullet
Answer» ANSWER: (2) 1.6 m/s OPPOSITE to the DIRECTION of BULLET.

7.

A bullet of mass 40 g is fired from a gun of mass 10 kg. If velocity of bullet is 400 m/s, then the recoil velocityof the gun will be(11) 1.6 m/s in the direction of bullet(2) 1.6 m/s opposite to the direction of bullet(3) 1.8 m/s in the direction of bullet(4) 1.8 m/s opposite to the direction of bullet

Answer»

ANSWER:

(2) 1.6 m/s OPPOSITE to the DIRECTION of BULLET.

Discussion

8.	a convex lens produces an inverted image magnified three times of an object placed at a 15cm from it. calculate the focal length of the lens.
Answer» <U>Answer: FOCAL length of lens is +11.25 cm. Step-by-step explanation- Given: m ( MAGNIFICATION ) = -3 [ Since the image is inverted, magnification will be -3] u ( object distance ) = -15cm To find: focal length = ? ____.. We know that ${\boxed {\huge {\tt m= \frac{<klux>V</klux>}{u}}}}$ Where, m is magnification v is image distance u is object distance $\tt {\implies - 3 = \frac{v}{ - 15}}$ $\tt {\implies v = ( - 3 )\times ( - 15)}$ $\tt\blue {\implies v = 45cm}$ Now, ACCORDING to lens formula- ${\boxed {\huge {\tt \frac{1}{v} - \frac{1}{u} = \frac{1}{f}}}}$ Substituting values- $\tt { \longrightarrow \frac{1}{45} - \frac{1}{ -15} = \frac{1}{f} }$ $\tt { \longrightarrow \frac{1 + 3}{45} = \frac{1}{f}}$ $\tt { \longrightarrow \frac{4}{45} = \frac{1}{f}}$ $\tt\red { \longrightarrow f = \frac{45}{4}}$ [ After reciprocating both sides] $\tt\red { \longrightarrow f = 11.25}$ Hence, the focal length of the lens is 11.25 cm.

8.

a convex lens produces an inverted image magnified three times of an object placed at a 15cm from it. calculate the focal length of the lens.

Answer»

<U>Answer:

FOCAL length of lens is +11.25 cm.

Step-by-step explanation-

Given:

m ( MAGNIFICATION ) = -3

[ Since the image is inverted, magnification will be -3]

u ( object distance ) = -15cm

To find:

focal length = ?

____..

We know that

${\boxed {\huge {\tt m= \frac{<klux>V</klux>}{u}}}}$

Where,

m is magnification
v is image distance
u is object distance

$\tt {\implies - 3 = \frac{v}{ - 15}}$

$\tt {\implies v = ( - 3 )\times ( - 15)}$

$\tt\blue {\implies v = 45cm}$

Now, ACCORDING to lens formula-

${\boxed {\huge {\tt \frac{1}{v} - \frac{1}{u} = \frac{1}{f}}}}$

Substituting values-

$\tt { \longrightarrow \frac{1}{45} - \frac{1}{ -15} = \frac{1}{f} }$

$\tt { \longrightarrow \frac{1 + 3}{45} = \frac{1}{f}}$

$\tt { \longrightarrow \frac{4}{45} = \frac{1}{f}}$

$\tt\red { \longrightarrow f = \frac{45}{4}}$

[ After reciprocating both sides]

$\tt\red { \longrightarrow f = 11.25}$

Hence, the focal length of the lens is 11.25 cm.

Discussion

9.	1. A body having a velocity of 200 ms has a momentum of 5 Ns. Findthe mass of body
Answer» ANSWER: the answer is 他媽的 Explanation: 他媽的 PLEASE LIKE and FOLLOW me please please please

9.

1. A body having a velocity of 200 ms has a momentum of 5 Ns. Findthe mass of body

Answer»

ANSWER:

the answer is 他媽的

Explanation:

他

媽

的

PLEASE LIKE and FOLLOW me please please please

Discussion

10.	Calculate the work done to on a mass of8 Kg , Displaced 7 m in with an acceleration of3 m/s^2
Answer» ANSWER: USE FORMULA OF NEWTONS 2ND MOTION MARK BRAINLIEST

10.

Calculate the work done to on a mass of8 Kg , Displaced 7 m in with an acceleration of3 m/s^2

Answer»

ANSWER:

USE FORMULA OF NEWTONS 2ND MOTION

MARK BRAINLIEST

Discussion

11.	Write the working principle of springbalance briefly
Answer» Answer: Spring Balance is USED to measure the WEIGHT of the object. when the load is hung on the spring, it stretches and the spring's EXTENSION is proportional to the weight of the object. The working principle of the spring balance is Hooked law. Which is F= -kx... HOPE this answer helpful for U

11.

Write the working principle of springbalance briefly

Answer»

Answer:

Spring Balance is USED to measure the WEIGHT of the object. when the load is hung on the spring, it stretches and the spring's EXTENSION is proportional to the weight of the object. The working principle of the spring balance is Hooked law. Which is F= -kx...

HOPE this answer helpful for U

Discussion

12.	SIMPLE DEFINITION OF ELECTROSTATIC FORCE
Answer» $\huge{ \underline{ \mathcal{Answer - }}}$ єlєctrσstαtícs ís α вrαnch σf phчsícs thαt studíєs єlєctríc chαrgєs αt rєst. síncє clαssícαl phчsícs, ít hαs вєєn knσwn thαt sσmє mαtєríαls, such αs αmвєr, αttrαct líghtwєíght pαrtíclєs αftєr ruввíng. thє grєєk wσrd fσr αmвєr, ήλεκτρον, σr єlєctrσn, wαs THUS thє sσurcє σf thє wσrd 'єlєctrícítч'.

12.

SIMPLE DEFINITION OF ELECTROSTATIC FORCE

Answer»

$\huge{ \underline{ \mathcal{Answer - }}}$

єlєctrσstαtícs ís α вrαnch σf phчsícs thαt studíєs єlєctríc chαrgєs αt rєst. síncє clαssícαl phчsícs, ít hαs вєєn knσwn thαt sσmє mαtєríαls, such αs αmвєr, αttrαct líghtwєíght pαrtíclєs αftєr ruввíng. thє grєєk wσrd fσr αmвєr, ήλεκτρον, σr єlєctrσn, wαs THUS thє sσurcє σf thє wσrd 'єlєctrícítч'.

Discussion

13.	When an object is in equilibrium state, then(1) It must be at rest(2) Its net acceleration must be zero(3) No force is acting on it(4). All of these
Answer» ANSWER: When an OBJECT is in EQUILIBRIUM state, then Its net acceleration must be ZERO.

13.

When an object is in equilibrium state, then(1) It must be at rest(2) Its net acceleration must be zero(3) No force is acting on it(4). All of these

Answer»

ANSWER:

When an OBJECT is in EQUILIBRIUM state, then

Its net acceleration must be ZERO.

Discussion

14.	A boy having 0.2kg toy tied with a sting, having force 2N, angle 60º displaces it 5 m. What is the work done
Answer» EXPLANATION: WORK DONE =FDcos60 =2x5x1/2 =5Joules is the ANSWER of this QUESTION

14.

A boy having 0.2kg toy tied with a sting, having force 2N, angle 60º displaces it 5 m. What is the work done

Answer»

EXPLANATION:

WORK DONE =FDcos60

=2x5x1/2

=5Joules is the ANSWER of this QUESTION

Discussion

15.	Mention two ways of reducing frictionAlso explain them briefly
Answer» Answer: Explanation: In layman's terms, friction is a force that RESISTS one surface from sliding or rolling over another. Therefore, it can be said that friction only occurs when TWO surfaces are in relative motion, such as when a crankshaft is rotating in a journal bearing or when a ball bearing is rolling along its raceway. A microscopic view of these surfaces in relative motion reminds us that each surface contains TINY, jagged asperities (rough and uneven surfaces), no matter how closely these surfaces are machined. Without some form of separation, such as that formed by a lubricant film, these surface asperities may seize upon contact. At the very LEAST, some abrasion, adhesion and/or ploughing of these asperities will take place as the MOVEMENT occurs.

15.

Mention two ways of reducing frictionAlso explain them briefly

Answer»

Answer:

Explanation:

In layman's terms, friction is a force that RESISTS one surface from sliding or rolling over another. Therefore, it can be said that friction only occurs when TWO surfaces are in relative motion, such as when a crankshaft is rotating in a journal bearing or when a ball bearing is rolling along its raceway.

A microscopic view of these surfaces in relative motion reminds us that each surface contains TINY, jagged asperities (rough and uneven surfaces), no matter how closely these surfaces are machined.

Without some form of separation, such as that formed by a lubricant film, these surface asperities may seize upon contact. At the very LEAST, some abrasion, adhesion and/or ploughing of these asperities will take place as the MOVEMENT occurs.

Discussion

16.	5. Convert the following temperatures to the Kelvin scale (AS)(a) 27°C(b) 367°C
Answer» Answer: 300k and 640k ....................

16.

5. Convert the following temperatures to the Kelvin scale (AS)(a) 27°C(b) 367°C

Answer»

Answer:

300k and 640k ....................

Discussion

17.	A solution is prepared by adding 3 g of a glucose to 18 g of water. Calculate the mole per cent of the solute (approximately).
Answer» and this is how the MOLE PERCENT can be calculated and fir CALCULATING mole percent of SOLVENT same procedure can be followed hope it helps

17.

A solution is prepared by adding 3 g of a glucose to 18 g of water. Calculate the mole per cent of the solute (approximately).

Answer»

and this is how the MOLE PERCENT can be calculated

and fir CALCULATING mole percent of SOLVENT same procedure can be followed

hope it helps

Discussion

18.	the distance travelled by a falling body in the last second of its motion to that of the last but one second is 7:5, the velocity with which body strikes the ground is
Answer» Answer: The distance travelled by a FALLING BODY in the last second of its MOTION, to that in the last but one second is 7:5, the VELOCITY with which body strikes the ground is. 1) 19.6 m/s.Jul 12, 2019

18.

the distance travelled by a falling body in the last second of its motion to that of the last but one second is 7:5, the velocity with which body strikes the ground is

Answer»

Answer:

The distance travelled by a FALLING BODY in the last second of its MOTION, to that in the last but one second is 7:5, the VELOCITY with which body strikes the ground is. 1) 19.6 m/s.Jul 12, 2019

Discussion

19.	A bullet of mass 40 g is fixed from a rifel of mass 4 kg if its speed is increased from rest to 50m/s un 10 s calculate the amount of foece exerted
Answer» Answer:Mass of the rifle (m1) = 4 kg Mass of the BULLET (m2) = 50 g = 0.05 kg Recoil VELOCITY of the rifle = v1 A bullet is FIRED with an initial velocity (v2) = 35 m/s Initially, the rifle is at rest. Thus, its initial velocity (v) = 0 Total initial momentum of the rifle and bullet SYSTEM ⇒ (m1+m2) × v = 0 The total momentum of the rifle and bullet system after firing = m1v1 + m2v2 = (4 × v1 ) + (0.05 × 35) = 4v1 + 1.75 According to the law of conservation of momentum Total momentum after the firing = Total momentum before the firing 4v1 + 1.75 = 0 v1= -1.75 / 4 v1 = – 0.4375 m/s The negative sign indicates that the rifle recoils BACKWARDS with a velocity of 0.437m/s

19.

A bullet of mass 40 g is fixed from a rifel of mass 4 kg if its speed is increased from rest to 50m/s un 10 s calculate the amount of foece exerted

Answer»

Answer:Mass of the rifle (m1) = 4 kg

Mass of the BULLET (m2) = 50 g = 0.05 kg

Recoil VELOCITY of the rifle = v1

A bullet is FIRED with an initial velocity (v2) = 35 m/s

Initially, the rifle is at rest.

Thus, its initial velocity (v) = 0

Total initial momentum of the rifle and bullet SYSTEM

⇒ (m1+m2) × v = 0

The total momentum of the rifle and bullet system after firing

= m1v1 + m2v2

= (4 × v1 ) + (0.05 × 35)

= 4v1 + 1.75

According to the law of conservation of momentum

Total momentum after the firing = Total momentum before the firing

4v1 + 1.75 = 0

v1= -1.75 / 4

v1 = – 0.4375 m/s

The negative sign indicates that the rifle recoils BACKWARDS with a velocity of 0.437m/s

Discussion

20.	A moving metre stick is measured to be 90 cm. what is its speed?
Answer» ANSWER: it will be, 90cm* 10 cm =900 cm^² Explanation: HOPE it was HELPFUL to you

20.

A moving metre stick is measured to be 90 cm. what is its speed?

Answer»

ANSWER:

it will be,

90cm* 10 cm =900 cm^²

Explanation:

HOPE it was HELPFUL to you

Discussion

21.	Řek (git uhСу 9[email protected]aJ
Answer» ANSWER: What's your QUESTION PLEASE WRITE it PROPERLY

21.

Řek (git uhСу 9[email protected]aJ

Answer»

ANSWER:

What's your QUESTION PLEASE WRITE it PROPERLY

Discussion

22.	What the unit of electric protentional?
Answer» ANSWER: ᴠᴏʟᴛ Explanation: ᴛʜᴇ sɪ ᴜɴɪᴛ ᴏғ ᴇʟᴇᴄᴛʀɪᴄ ᴘᴏᴛᴇɴᴛɪᴀʟ ɪs ᴛʜᴇ ᴠᴏʟᴛ, ᴡʜɪᴄʜ ɪs ᴅᴇғɪɴᴇᴅ ᴀs ᴀ ᴊᴏᴜʟᴇ ᴘᴇʀ ᴄᴏᴜʟᴏᴍʙ. ᴀɴᴏᴛʜᴇʀ ᴘʜʏsɪᴄᴀʟ ϙᴜᴀɴᴛɪᴛʏ ᴡɪᴛʜ ᴛʜᴇ sᴀᴍᴇ ᴅɪᴍᴇɴsɪᴏɴ ɪs ᴇʟᴇᴄᴛʀᴏᴍᴏᴛɪᴠᴇ ғᴏʀᴄᴇ. ... ᴀɴ ᴀᴛᴏᴍɪᴄ ᴠᴏʟᴛ ɪs ᴅᴇғɪɴᴇᴅ ᴀs ʜᴀʀᴛʀᴇᴇ ᴘᴇʀ ᴇʟᴇᴄᴛʀᴏɴ, ᴀᴘᴘʀᴏxɪᴍᴀᴛᴇʟʏ ᴠᴏʟᴛs. follow me mark as brainliest physics expert✨

22.

What the unit of electric protentional?

Answer»

ANSWER:

ᴠᴏʟᴛ

Explanation:

ᴛʜᴇ sɪ ᴜɴɪᴛ ᴏғ ᴇʟᴇᴄᴛʀɪᴄ ᴘᴏᴛᴇɴᴛɪᴀʟ ɪs ᴛʜᴇ ᴠᴏʟᴛ, ᴡʜɪᴄʜ ɪs ᴅᴇғɪɴᴇᴅ ᴀs ᴀ ᴊᴏᴜʟᴇ ᴘᴇʀ ᴄᴏᴜʟᴏᴍʙ. ᴀɴᴏᴛʜᴇʀ ᴘʜʏsɪᴄᴀʟ ϙᴜᴀɴᴛɪᴛʏ ᴡɪᴛʜ ᴛʜᴇ sᴀᴍᴇ ᴅɪᴍᴇɴsɪᴏɴ ɪs ᴇʟᴇᴄᴛʀᴏᴍᴏᴛɪᴠᴇ ғᴏʀᴄᴇ. ... ᴀɴ ᴀᴛᴏᴍɪᴄ ᴠᴏʟᴛ ɪs ᴅᴇғɪɴᴇᴅ ᴀs ʜᴀʀᴛʀᴇᴇ ᴘᴇʀ ᴇʟᴇᴄᴛʀᴏɴ, ᴀᴘᴘʀᴏxɪᴍᴀᴛᴇʟʏ ᴠᴏʟᴛs.

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physics expert✨

Discussion

23.	State any two differences between the energy and power
Answer» ANSWER: ENERGY and POWER is LIKE GLUCOSE

23.

State any two differences between the energy and power

Answer»

ANSWER:

ENERGY and POWER is LIKE GLUCOSE

Discussion

24.	নীচের প্রশ্নগুলির উত্তর লেখাে :মাটির 6 ফুট উপর থেকে একটি খাতার পাতা ও একটি কয়েন একইসঙ্গে ছেড়ে দিলে কোনটি আগে মাটিতে পড়কেন এমন হয় ব্যাখ্যা করাে।২. প্লাস্টিকের চিরুনি দিয়ে শীতকালে শুকনাে চুল আঁচড়ানাের পর তা নিস্তড়িৎ কাগজের টুকরােকে আকর্ষণ করে কেনব্যাখ্যা দাও।গ্যাসীয় অবস্থায় তাণুদের গতীয় অবস্থা সম্বন্ধে তুমি কী কী বলতে পারাে?3.প্রাইমডিয়াল ইউটিকল কী?asob er uttor chai
Answer» Answer: sorry but I am not able to understand the LANGUAGE can you please CHANGE the question in ENGLISH or Hindi

24.

নীচের প্রশ্নগুলির উত্তর লেখাে :মাটির 6 ফুট উপর থেকে একটি খাতার পাতা ও একটি কয়েন একইসঙ্গে ছেড়ে দিলে কোনটি আগে মাটিতে পড়কেন এমন হয় ব্যাখ্যা করাে।২. প্লাস্টিকের চিরুনি দিয়ে শীতকালে শুকনাে চুল আঁচড়ানাের পর তা নিস্তড়িৎ কাগজের টুকরােকে আকর্ষণ করে কেনব্যাখ্যা দাও।গ্যাসীয় অবস্থায় তাণুদের গতীয় অবস্থা সম্বন্ধে তুমি কী কী বলতে পারাে?3.প্রাইমডিয়াল ইউটিকল কী?asob er uttor chai

Answer»

Answer:

sorry but I am not able to understand the LANGUAGE

can you please CHANGE the question in ENGLISH or Hindi

Discussion

25.	Symbols of electrical component full explain
Answer» Answer: Light Emitting Diode (LED): LED STANDS for light-emitting diode. ... Photodiode: The symbol of the photodiode is SIMILAR to the LED Symbol except that it contains arrows striking the diode. ... Zener Diode: ... Schottky Diode: ... Batteries: ... Motor: ... Fuse and PTCs: EXPLANATION: please follow me and make me as brainlist

25.

Symbols of electrical component full explain

Answer»

Answer:

Light Emitting Diode (LED): LED STANDS for light-emitting diode. ...
Photodiode: The symbol of the photodiode is SIMILAR to the LED Symbol except that it contains arrows striking the diode. ...
Zener Diode: ...
Schottky Diode: ...
Batteries: ...
Motor: ...
Fuse and PTCs:

EXPLANATION:

please follow me and make me as brainlist

Discussion

26.	On which principal this equipment works?
Answer» An ideal machine is that in which there is no dissipation of ENERGY in any manner. In an ideal machine, the WORK output is equal to the work input, i.e., EFFICIENCY of an ideal machine is 100%. hope HELPS you MAKE me as brainlist

26.

On which principal this equipment works?

Answer»

An ideal machine is that in which there is no dissipation of ENERGY in any manner. In an ideal machine, the WORK output is equal to the work input, i.e., EFFICIENCY of an ideal machine is 100%.

hope HELPS you MAKE me as brainlist

Discussion

27.	How many electrons will carry 4.8×10^-16 C charge?a) 300b)3000C)4800
Answer» no of electrons=total charge/charge in electron e=1.6×10^19 e=4.8×10^-16/1.6×10^1019 e=3×10^3 e=3000 option b hope HELPS you MAKE me as BRAINLIST

27.

How many electrons will carry 4.8×10^-16 C charge?a) 300b)3000C)4800

Answer»

no of electrons=total charge/charge in electron

e=1.6×10^19

e=4.8×10^-16/1.6×10^1019

e=3×10^3

e=3000

option b

hope HELPS you MAKE me as BRAINLIST

Discussion

28.	He observed that the bulb did not glow buton bringing a compass needle near it showsdeflectionHe was quite confused that if current isflowing through the circuit then why the bulbis not glowing. Meanwhile his friend Souravarrived and suggested him to add one morecell in the circuit. The bulb, then startedglowing02111(a) Define a circuit(b) What does the deflection of a compassneedle shows?(C) Why the bulb did not glow in the first
Answer» Answer: a) The path for electricity to FLOW is called a circuit. b) The DEFLECTION in the compass needle shows that the current is flowing through the circuit. c) the BULB didn't glow in the first case because there wasn't enough current in the circuit for the bulb to glow. When one more CELL was added, the current BECAME strong and the bulb glowed. Hope it helps Explanation:

28.

He observed that the bulb did not glow buton bringing a compass needle near it showsdeflectionHe was quite confused that if current isflowing through the circuit then why the bulbis not glowing. Meanwhile his friend Souravarrived and suggested him to add one morecell in the circuit. The bulb, then startedglowing02111(a) Define a circuit(b) What does the deflection of a compassneedle shows?(C) Why the bulb did not glow in the first

Answer»

Answer:

a) The path for electricity to FLOW is called a circuit.

b) The DEFLECTION in the compass needle shows that the current is flowing through the circuit.

c) the BULB didn't glow in the first case because there wasn't enough current in the circuit for the bulb to glow. When one more CELL was added, the current BECAME strong and the bulb glowed.

Hope it helps

Explanation:

Discussion

29.	Determination of focal length of a given concave mirror by distance object method?plzzzzz give proper ans no spam plzz
Answer» uwjwbxwjie ecskef iebdjke djenekd jsncsmsi jebdm dh Explanation: 638ndjjdh63 &$

29.

Determination of focal length of a given concave mirror by distance object method?plzzzzz give proper ans no spam plzz

Answer»

uwjwbxwjie ecskef iebdjke djenekd jsncsmsi jebdm dh

Explanation:

638ndjjdh63 &$

Discussion

30.	A wire is placed along N-S direction. 8A current from S-N find the magnetic field due to one cm piece of wire at a point 200 cm N.E from the piece
Answer» 1.414×10^-9 T is the VALUE of MAGNETIC field hope this HELPS U...

30.

A wire is placed along N-S direction. 8A current from S-N find the magnetic field due to one cm piece of wire at a point 200 cm N.E from the piece

Answer»

1.414×10^-9 T is the VALUE of MAGNETIC field

hope this HELPS U...

Discussion

31.	1.4 The force acting on a partide is found to be proportional to velocityThe constant of proportionality is measured in terms of(alkos!(b) kas(o komst(d) kg ms
Answer» EXPLANATION: IFIF you're acting on a particle is found to be PROPORTIONAL to VELOCITY so the CONSTANT of proportionality is measured in terms of KG m s

31.

1.4 The force acting on a partide is found to be proportional to velocityThe constant of proportionality is measured in terms of(alkos!(b) kas(o komst(d) kg ms

Answer»

EXPLANATION:

IFIF you're acting on a particle is found to be PROPORTIONAL to VELOCITY so the CONSTANT of proportionality is measured in terms of KG m s

Discussion

32.	Write and Derive the equations of motion involving in uniform acceleration.
Answer» ANSWER: Explanation: In case of uniform acceleration, there are three equations of motion which are also known as the LAWS of CONSTANT acceleration. Hence, these equations are used to derive the components LIKE displacement(s), velocity (initial and final), time(t) and acceleration(a).

32.

Write and Derive the equations of motion involving in uniform acceleration.

Answer»

ANSWER:

Explanation:

In case of uniform acceleration, there are three equations of motion which are also known as the LAWS of CONSTANT acceleration. Hence, these equations are used to derive the components LIKE displacement(s), velocity (initial and final), time(t) and acceleration(a).

Discussion

33.	Do answer fast plzzzzzz I will mark you as brainliest
Answer» ANSWER: B is the CORRECT answer I THINK

33.

Do answer fast plzzzzzz I will mark you as brainliest

Answer»

ANSWER:

B is the CORRECT answer I THINK

Discussion

34.	Write few applications of atmospheric pressure...Answer it correctly Plz
Answer» can you TELL me how MANY you WANT

34.

Write few applications of atmospheric pressure...Answer it correctly Plz

Answer»

can you TELL me how MANY you WANT

Discussion

35.	B) Find the angle between two vectors:A = i + 2j k     and B = i 2j + k     .
Answer» ANSWER: hah Explanation: jsskjsjsjsnsnsnsnsnsns

35.

B) Find the angle between two vectors:A = i + 2j k     and B = i 2j + k     .

Answer»

ANSWER:

hah

Explanation:

jsskjsjsjsnsnsnsnsnsns

Discussion

36.	When a constant force is applied to a body it moves with uniforma) accelerationb) velocityc) speedd. momentum
Answer» ANSWER: SPEED. is the answer. (C)

36.

When a constant force is applied to a body it moves with uniforma) accelerationb) velocityc) speedd. momentum

Answer»

ANSWER:

SPEED. is the answer. (C)

Discussion

37.	What is Physics?And its application .
Answer» Answer: Physics extends well into your everyday LIFE, describing the motion, forces and energy of ordinary experience. In actions such as walking, driving a car or using a phone, physics is at work. For everyday living, all the TECHNOLOGIES you might take for GRANTED EXPLOIT the rules of physics. and mark me as the brainliest and PLEASE follow me

37.

What is Physics?And its application .

Answer»

Answer:

Physics extends well into your everyday LIFE, describing the motion, forces and energy of ordinary experience. In actions such as walking, driving a car or using a phone, physics is at work. For everyday living, all the TECHNOLOGIES you might take for GRANTED EXPLOIT the rules of physics.

and mark me as the brainliest and PLEASE follow me

Discussion

38.	3) If the temperatur of cold sampleis 30 degrees, change in temperatreis 8 degrees then temperature ofhot sumples is
Answer» ANSWER: DOWNLOAD vadhantu APP ANSWER will be there PLEASE like PLEASE MAKE me as brainlist

38.

3) If the temperatur of cold sampleis 30 degrees, change in temperatreis 8 degrees then temperature ofhot sumples is

Answer»

ANSWER:

DOWNLOAD vadhantu APP ANSWER will be there

PLEASE like

PLEASE MAKE me as brainlist

Discussion

39.	Which form of energy is most of the kinetic energy converted as the car slows down?
Answer» ANSWER: EXPLANATION: HEAT ENERGY

39.

Which form of energy is most of the kinetic energy converted as the car slows down?

Answer»

ANSWER:

EXPLANATION:

HEAT ENERGY

Discussion

40.	What are the materials required to find specific heat of a solid
Answer» *REFER the attachment.Hope this HELPS you.Pls MARK me as BRANLIEST .*

40.

What are the materials required to find specific heat of a solid

Answer»

REFER the attachment.Hope this HELPS you.Pls MARK me as BRANLIEST .

Discussion

41.	If bus travelling at 20m/s is subject to steady deceleration of 5m/s, how long will it take to came to rest ?
Answer» Given:- •Initial velocity(u)=20m/s •Deceleration=5m/s² =>Thus,acceleration(a)= -5m/s² •Final velocity(v)=0 (as finally the bus'll come to rest) To find:- •Time taken by the bus to come to rest(t) Solution:- By,using the 1st equation of motion,we get------- =>v=u+at =>0=20+(-5)t =>0-20= -5T =>-20=-5t =>t= -20/-5 =>t=4s Thus,the bus will take a time of 4 seconds to come to rest.

41.

If bus travelling at 20m/s is subject to steady deceleration of 5m/s, how long will it take to came to rest ?

Answer»

Given:-

•Initial velocity(u)=20m/s

•Deceleration=5m/s²

=>Thus,acceleration(a)= -5m/s²

•Final velocity(v)=0 (as finally the bus'll come to rest)

To find:-

•Time taken by the bus to come to rest(t)

Solution:-

By,using the 1st equation of motion,we get-------

=>v=u+at

=>0=20+(-5)t

=>0-20= -5T

=>-20=-5t

=>t= -20/-5

=>t=4s

Thus,the bus will take a time of 4 seconds to come to rest.

Discussion

42.	Which particle is bombarded on heavy nucleus of nuclear fuel
Answer» ANSWER: neutron is bombarded on HEAVY NUCLEUS of NUCLEAR fuel which is commonly we can take as Uranium and Thorium also

42.

Which particle is bombarded on heavy nucleus of nuclear fuel

Answer»

ANSWER:

neutron is bombarded on HEAVY NUCLEUS of NUCLEAR fuel which is commonly we can take as Uranium and Thorium also

Discussion

43.	According to method of mixtures heat lost by a body
Answer» ANSWER: Principle of METHOD of MIXTURE state that HEAT lost by a hot body when they are MIXED together and attain Same temperature

43.

According to method of mixtures heat lost by a body

Answer»

ANSWER:

Principle of METHOD of MIXTURE state that HEAT lost by a hot body when they are MIXED together and attain Same temperature

Discussion

44.	One who looks down upon all ordinary person g.k
Answer» Answer: Boss is the PERSON who LOOKS down upon all person... Sorry Idk if this is right...but leader is the one who helps EVERYONE one and boss is the one who scolds everyone for EVERYTHING... according to me...

44.

One who looks down upon all ordinary person g.k

Answer»

Answer:

Boss is the PERSON who LOOKS down upon all person...

Sorry Idk if this is right...but leader is the one who helps EVERYONE one and boss is the one who scolds everyone for EVERYTHING... according to me...

Discussion

45.	Does larynx and voice box are same
Answer» ANSWER: YES because layrnx is CALLED as the VOICE BOX

45.

Does larynx and voice box are same

Answer»

ANSWER:

YES because layrnx is CALLED as the VOICE BOX

Discussion

46.	What does objective of narega 2005
Answer» Answer: The Mahatma Gandhi National Rural Employment Guarantee Act, 2005 (MGNREGA) was notified on September 7, 2005. The mandate of the Act is to provide at least 100 days of GUARANTEED wage employment in a financial YEAR to every rural household whose adult members VOLUNTEER to do unskilled manual WORK.

46.

What does objective of narega 2005

Answer»

Answer:

The Mahatma Gandhi National Rural Employment Guarantee Act, 2005 (MGNREGA) was notified on September 7, 2005. The mandate of the Act is to provide at least 100 days of GUARANTEED wage employment in a financial YEAR to every rural household whose adult members VOLUNTEER to do unskilled manual WORK.

Discussion

47.	15.From a point on the ground,the top of a tree is seen to havean angle of elevation 60%. Thedistance between the tree anda point is 50 m. Calculate theheight of the tree?O 67.2 mO 56,8 mO 66,6 mVarcelO 86,6 m
Answer» Answer: answr search What would you like to ask? 10th Maths Some APPLICATIONS of Trigonometry Heights and Distances From a point on the ground ... MATHS From a point on the ground which is at a distance of 50 m from the FOOT of the tower, the angle of ELEVATION of the top of the tower is observed to be 30 o . Find the height of the tower. EASY Share Study later ANSWER Let the height of the tower be h m. From △PAB,TAN30 o = PA AB 3 1 = 50 h h= 3 50 Hence, the height of the tower is 3 50 m. solution

47.

15.From a point on the ground,the top of a tree is seen to havean angle of elevation 60%. Thedistance between the tree anda point is 50 m. Calculate theheight of the tree?O 67.2 mO 56,8 mO 66,6 mVarcelO 86,6 m

Answer»

Answer:

answr

search

What would you like to ask?

10th

Maths

Some APPLICATIONS of Trigonometry

Heights and Distances

From a point on the ground ...

MATHS

From a point on the ground which is at a distance of 50 m from the FOOT of the tower, the angle of ELEVATION of the top of the tower is observed to be 30

o

. Find the height of the tower.

EASY

Share

Study later

ANSWER

Let the height of the tower be h m.

From △PAB,TAN30

o

=

PA

AB

3

1

=

50

h

h=

3

50

Hence, the height of the tower is

3

50

m.

solution

Discussion

48.	CALCULATE THE PRESSURE EXERTED BY A BRICK WHICH APPLIES FORCE OF 2.5N, WHEN IT IS PLACED UPRIGHT ON THE SOIL. AREA OF BRICK IN CONTACT WITH SOIL IS 1OCM*5CM.
Answer» Answer: HI DEAR !! pressure = force / AREA so, 25÷area of rectangle 25÷500 0.05 PA ( PASCAL ) hope it helps!!! please follow me and thanks my answer

48.

CALCULATE THE PRESSURE EXERTED BY A BRICK WHICH APPLIES FORCE OF 2.5N, WHEN IT IS PLACED UPRIGHT ON THE SOIL. AREA OF BRICK IN CONTACT WITH SOIL IS 1OCM*5CM.

Answer»

Answer:

HI DEAR !!

pressure = force / AREA

so, 25÷area of rectangle

25÷500

0.05 PA ( PASCAL )

hope it helps!!!

please follow me and thanks my answer

Discussion

49.	Pls give the ccrrt ans pls fasttttt❗❗❗❗❗❗
Answer» ANSWER: 3cm,20 is your answer..........

49.

Pls give the ccrrt ans pls fasttttt❗❗❗❗❗❗

Answer»

ANSWER:

3cm,20 is your answer..........

Discussion

50.	what is the deceleration of a vehicle moving in a straight line that changes its velocity from 100 km/h to a dead stop in 10 seconds
Answer» Answer= -2.78m/s^2 Explanation= v=0m/s u=1001000/6060 m/s=1000/36 m/s t=10sec. a=0-1000/36 / 10 = -2.78m/s^2

50.

what is the deceleration of a vehicle moving in a straight line that changes its velocity from 100 km/h to a dead stop in 10 seconds

Answer»

Answer=

-2.78m/s^2

Explanation=

v=0m/s

u=100*1000/60*60 m/s=1000/36 m/s

t=10sec.

a=0-1000/36 / 10

= -2.78m/s^2

Discussion

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