Physics and Measurement (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 51 - 56 of 63

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Question number: 51

» Physics and Measurement » SI Units

MCQ▾

Question

Wavelength of ray of light is 0.00006 m. It is equal to

Choices

Choice (4) Response

a.

600 microns

b.

60 microns

c.

0.6 microns

d.

6 microns

Question number: 52

» Physics and Measurement » Errors in Measurement

MCQ▾

Question

A physical quantity P is given by P =

. The quantity which brings in the maximum percentage error in P is

Choices

Choice (4) Response

a.

D

b.

B

c.

A

d.

C

Question number: 53

» Physics and Measurement » Dimensions of Physical Quantities

MCQ▾

Question

What are the dimensions of permeability (µ 0) of vacuum?

Choices

Choice (4) Response

a.

[M L T -2 I -2]

b.

[M L T -2 I 2]

c.

[M L -1 T -2 I 2]

d.

[M L -1 T -2 I -2]

Question number: 54

» Physics and Measurement » Dimensions of Physical Quantities

MCQ▾

Question

In S = a + bt + ct 2, S is measured in meters and t in seconds. The unit of c is

Choices

Choice (4) Response

a.

ms -2

b.

m

c.

ms -1

d.

None of the above

Passage

Three of the fundamental constants of physics are the universal gravitational constant, G = 6.7 x 10 -11 m 3 kg -1 s -2, the speed of light, c = 3.0 x 10 8 m/s, and Planck’s constant,

h = 6.6 x 10 -34 kg m 2 s -1.

Question number: 55 (1 of 2 Based on Passage) Show Passage

» Physics and Measurement » Dimensions of Physical Quantities

MCQ▾

Question

The energy of a photon is given by E = If λ = 4 x 10 - 7 m, the energy of photon is

The universal gravitational constant, G = 6.7 x 10 -11 m 3 kg -1 s -2, the speed of light, c = 3.0 x 10 8 m/s, and Planck’s constant, h = 6.6 x 10 -34 kg m 2 s -1.

Choices

Choice (4) Response

a.

4.5 eV

b.

2.10eV

c.

3.0 eV

d.

3.95 eV

Question number: 56 (2 of 2 Based on Passage) Show Passage

» Physics and Measurement » Dimensions of Physical Quantities

MCQ▾

Question

Find the value of Planck time in seconds

The universal gravitational constant, G = 6.7 x 10 -11 m 3 kg -1 s -2, the speed of light, c = 3.0 x 10 8 m/s, and Planck’s constant, h = 6.6 x 10 -34 kg m 2 s -1.

Choices

Choice (4) Response

a.

2.3 10 -13 s

b.

1.3 10 -33 s

c.

1.3 10 - 43 s

d.

None of the above