NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 997 - 1002 of 2142

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Question number: 997

» Ray Optics » Reflection and Refraction of Light » Spherical Surface

MCQ▾

Question

Two plane mirrors are inclined at an angle θ. A ray of light is incident on one mirror at an angle of incidence i. The ray is reflected from this mirror, falls on the second mirror from where it is reflected parallel to the first mirror. What is the value of i, the angle of incidence in terms θ?

Choices

Choice (4) Response

a.

3θ - 90°

b.

2θ - 90°

c.

θ - 90°

d.

4θ - 90°

Question number: 998

» Ray Optics » Reflection and Refraction of Light » Smooth Surface

MCQ▾

Question

An air bubble in water acts as,

Choices

Choice (4) Response

a.

A divergent lens

b.

A convergent lens

c.

A plane mirror

d.

None of the above

Question number: 999

» Ray Optics » Reflection and Refraction of Light » Spherical Surface

MCQ▾

Question

Find the number of images formed by two mutually perpendicular mirrors -

Choices

Choice (4) Response

a.

2

b.

4

c.

1

d.

3

Question number: 1000

» Electromagnetic Waves » Applications of Electromagnetic Waves

MCQ▾

Question

If TV signals are to b received by the ground waves with in a range D, the height of the TV tower should be, (R is the radius of earth)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1001

» Electromagnetic Waves » Electromagnetic Waves & Characteristics

MCQ▾

Question

Which of the following waves have minimum frequency?

Choices

Choice (4) Response

a.

Audible waves

b.

Radio waves

c.

Microwaves

d.

Ultrasonic waves

Question number: 1002

» Ray Optics » Snell's Law

MCQ▾

Question

A ray of light is incident on a transparent glass-slab of refractive index 1.5. If the reflected and refracted rays are mutually perpendicular, what is the angle of incidence?

Choices

Choice (4) Response

a.

b.

c.

30 0

d.

f Page
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