Units and Measurements Quiz | Units and Measurements Objective Type Questions and Answers

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Questions
21 If radian correction is not considered in specific heat measurement. The measured value of specific heat will be
A more than its actual value.
B less than its actual value.
C remains same as actual value.
D none of these.

Answer: more than its actual value.
22 If length of pendulum is increased by 2%. The time period will
A increases by 1%
B decreases by 1%
C increases by 2%
D decreases by 2%

Answer: increases by 1%
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23 In case of measurement of ‘g’, if error in measurement of length of pendulum is 2%, the percentage error in time period is1 %. The maximum error in measurement of g is
A 1 %
B 2 %
C 4 %
D no error.

Answer: 4 %
24 Dimensional formula of latent heat
A M0L2T-2
B MLT-2
C ML2T-2
D None of above

Answer: M0L2T-2
25 The measurement of radius of a circle has error of 1%. The error in measurement of its area is
A 1%
B 2%
C 3%
D none of these

Answer: 2%
26 The multiplication of 10.610 with 0.210 upto correct number of significant figure is
A 2.2281
B 2.228
C 2.22
D 2.2

Answer: 2.228
27 If v stands for velocity of sound, E is elasticity and d the density, then find x in the equation v = (d/E)x
A 1
B ½
C 2
D -1/2

Answer: -1/2
28 On the basis of dimensional equation, the maximum number of unknown that can be found, is
A one
B two
C three
D None of above.

Answer: three

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