Monday, 29 April 2019

Physics MCQs Ebook page 3

Pages: 1 |    2 |    3 |    4



The Answer key for MCQs from 1 to 57 is at page 4



41. An accurate measurement is one which has less
a) Precision
b) Absolute uncertainty
c) Fractional uncertainity
d) None


42. If= 10.5 ± 0.1and= 26.8 ± 0.1,then=is given as:
a) 16.3 ± 0.1
b) 16.3 ± 0.2
c) 16.1 ± 0
d) 16.3 ± 0


43. Smaller is the least count of the instrument, more is
the measurement:
a) Accurate
b) Precise
c) Accurate and precise
d) None of these


44. Which is a correct record for the diameter of wire
when measured my a screw gauge of least count 0.001
cm:
a) 2.3 cm
b) 2.31 cm
c) 2.312 cm
d) 2.3124 cm


45. Which one of the following is not regarded as a
fundamental quantity in Physics?
a) Length
b) Mass
c) Time
d) Weight



50. The dimension of the following pair is not the same
a) work & energy
b) work and torque
c) Momentum & impulse
d) Mass & moment of inertia



51. Unit of G is ?
a) Nm2 kg2
b) N m2 kg
c) N m2 kg-2
d) None



52. The dimension of force is
a) MLT-1
b) MLT-2
c) ML-1T
d) ML-1T2



53.T-2 is the dimension of
a) Force
b) Pressure
c) Momentum
d) Energy



54. A light year is a unit for
a) Time
b) Distance
c) Velocity
d) Time period





56. The dimensions of stain are
a) [MLT2]
b) [ML-2T]
c) [Mo Lo To]
d) [M-1L-1T-1]




57. How many years in one second?
a) 3.1 × 10
years
b) 3.1 × 10
years
c) 3.1 × 10
years
d) 3.1 × 10
years

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