Physics, asked by patilrevatil1008, 5 months ago

What is the solid angle subtended by a hemisphere at its centre?

A)  steradian B) 2 steradian C) 3 steradian D) 4 steradian

2) Which one of the following is the smallest unit?

A) Fermi B) Angstrom C) Micron D) Nanometre

3) When an unknown physical quantity X is divided by the force, acting on the body, we

get the velocity of the body. What is X?

A) Work B) Kinetic energy C) Power D) Linear momentum

4) Which one of the following is not related to time?

A) Month B) Nanosecond C) Year D) Light year

5) The unit 1 N/m is equivalent to

A) 1 erg/ cm B) 1 erg/cm2 C) 1 J/m D) 1J/m2

6) Joule/cm3 can be a unit of

A) Impulse B) Force C) Pressure D) Momentum

7) If the units of length, mass and time are doubled, then the new unit of work expressed

in terms of L, M and T

A) becomes four times B) becomes two times

C) becomes eight times D) is not changed

8) What is the order of magnitude of 1 light year expressed in metre?

A) 1014 B) 1015 C) 1016 D) 1017

9) A student measured the diameter of a solid cylinder using a micrometer screw gauge

of least count 0.001 cm and took the following readings. Which is the correct

measurement?

A) 1.32 cm B) 1.3 cm C) 1.320 cm D) 1.3200cm

10) The length and breadth of a metal sheet are 2.325 m and 3.142 m respectively. What

is the area of this sheet using proper number of significant figures?

A) 7.30515 m2 B) 7.3051 m2 C) 7.305 m2 D) 7.31 m2

11) The error in the measurement of the radius of a sphere is 0.2 %. What is the

percentage error in the measurement of its surface area?

A) 0.2% B) 0.4% C) 0.6% D) 0.8%

12) Zero error is included in the category of

A) Personal errors B) Instrumental errors

C) Accidental errors D) Constant errors

13) Two carbon resistances are given by R1 = (4  0.4) ohm and R2 = (12  0.6) . What is

their net resistance with percentage error, if they are connected in series?

A) 16  5% B) 16   6.25% C) 16  8% D) 16  12%

14) Identify the pair whose dimensions are equal.

A) Stress and Energy B) Torque and Work

C) Force and Work D) Force and Stress

15) The dimensions of velocity gradient are the same as that of

A) Frequency B) periodic time

C) Acceleration D) Angular acceleration

16) The relation between force ‘F’ and distance ‘d’ is F =

d

x

. The dimensions of x are

A)

















2 2

3

2

1

L m T

B)

















2 1 2

3

L m T

C)













 2 2

3

1

L m T

D)













 2 2

Answers

Answered by Anonymous
1

Answer:

Longest question

Explanation:

Mark me as brainliest answer...

Similar questions