# Physics and Measurement (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 58 - 62 of 63

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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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