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Free download in PDF Units and Measurements Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(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%
(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.
(24)
Dimensional formula of latent heat
[A]
M0L2T-2
[B]
MLT-2
[C]
ML2T-2
[D]
None of above
(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
(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
(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
(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.
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