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Physics MCQ Questions with answers

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Learn Physics MCQs [Page 1 of Department 12]

A

Ankit Singh • 5.81K Points
Tutor III

1) The bats can fly in the dark because

(A) They can see the objects in darkness
(B) They have weak legs and are likely to be attacked by predators
(C) They generate flashes of light
(D) They generate ultrasonic sound waves
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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A

Ankit Singh • 5.81K Points
Tutor III

3) The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as

(A) Audible sounds
(B) Ultrasonics
(C) Infrasonics
(D) Megasonics
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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A

Ankit Singh • 5.81K Points
Tutor III

5) A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers.

(A) Reflection
(B) Refraction
(C) Diffraction
(D) Total internal reflection
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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A

Ankit Singh • 5.81K Points
Tutor III

6) The snow on the mountains does not melt all at once when it is heated by the sun because:

(A) It becomes very hard
(B) It reflects most of the heat from the sun
(C) It has a low specific heat capacity
(D) It has a high latent heat of fusion
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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A

Ankit Singh • 5.81K Points
Tutor III

7) Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly

(A) Absorb heat from the atmosphere send it towards earth
(B) Prevent cold waves from the sky descending on earth
(C) Reflect back the heat given by earth
(D) Produce heat and radiate it toward earth
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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A

Ankit Singh • 5.81K Points
Tutor III

8) Which type of mirror is used in the head lights of vehicles ?

(A) Plane mirror
(B) Concave mirror
(C) Convex mirror
(D) Parabolic mirror
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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A

Ankit Singh • 5.81K Points
Tutor III

9) If objects appear enlarged and inverted in a rear view mirror, then which type of mirror is used?

(A) Concave
(B) Convex
(C) Cylindrical
(D) Plane
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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J

Jitendra Singh • 7.47K Points
Tutor III

10) A mirage occurs because of

(A) Reflection by hot ground
(B) Total internal reflection by layers of air
(C) Interference of light
(D) Diffraction of light
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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