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
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