Ray Optics-Snell's Law (NEET Physics): Questions 7 - 8 of 8

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Question number: 7

» Ray Optics » Snell's Law

MCQ▾

Question

A ray of light incident on a prism surface at an angle of 50° in the minimum deviation position. If the angle of prism is 60° then the values of δ m and µ will be respectively- (sin 50° = 0.766)

Choices

Choice (4) Response

a.

60° and 1.532

b.

0° and 1.532

c.

40° and 1.532

d.

90° and 1.532

Question number: 8

» Ray Optics » Snell's Law

MCQ▾

Question

Light of wavelength 6000 Å enters from air into water (a medium of refractive index 4/3). Find the speed and wavelength [c = 3 × 10 8 m/s]

Choices

Choice (4) Response

a.

3.15 × 10 8 m/s, 3500A

b.

2.25 × 10 8 m/s, 4500A

c.

1.25 × 10 8 m/s, 2500A

d.

3.45 × 10 8 m/s, 5500A

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