Physics and Measurement (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 58 - 62 of 62

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Question number: 58

» Physics and Measurement » Fundamental and Derived Units. Least Count

MCQ▾

Question

A Vernier caliper N divisions of Vernier scale coincides with N - 1 divisions of main scale (in which length of one division is 1 mm). The least count of the instrument should be

Choices

Choice (4) Response

a.

1 10 N

b.

N-1

c.

N

d.

1/N - 1

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Question number: 59

» Physics and Measurement » Accuracy and Precision of Measuring Instruments

MCQ▾

Question

A student performs an experiment for determination of . The error in length is ∆ and in time T is ∆ T and n is number of times the reading is taken. The measurement of g is most accurate for

Choices

Choice (4) Response

a.

∆l = 5mn, ∆ T = 0.2 sec, n = 10

b.

∆l = 5mn, ∆T = 0.2 sec, n = 20

c.

∆l = 5mn, ∆T = 0.1 sec, n = 10

d.

∆l = 1mn, ∆T = 0.1 sec, n = 50

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Question number: 60

» Physics and Measurement » Accuracy and Precision of Measuring Instruments

MCQ▾

Question

If h be the elevation or depression of a spherical surface from the plane glass plate and o be the mean distance between two consecutive points corresponding to the impressions made by the three legs of a spherometer then the radius of curvature is

Choices

Choice (4) Response

a.

b.

c.

d.

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Question number: 61

» Physics and Measurement » Dimensions of Physical Quantities

Appeared in Year: 2016

MCQ▾

Question

Planck’s constant (h), speed of light in vacuum (c) and Newton’s gravitational constant (G) are three fundamental constants. Which of the following combinations of these has dimension of length?

Choices

Choice (4) Response

a.

b.

c.

d.

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Question number: 62

» Physics and Measurement » Dimensional Analysis and Its Applications

Appeared in Year: 2017

MCQ▾

Question

A physical quantity of the dimensions of length that can be formed out of and is [ is velocity of light, is universal constant of gravitation and is charge]:

Choices

Choice (4) Response

a.

b.

c.

d.

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