Physics - Questions and Answers, General Study (GK)

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301.

In summer, the mirages are seen due to the phenomenon of

(a)reflection of light

(b)total internal reflection

(c)interference of light

(d)diffraction of light

Comment

Answer is: BNA

302.

Lambert's law is related to

(a)reflection

(b)refraction

(c)interference

(d)illumination

Comment

Answer is: DNA

303.

A complete circular rainbow may be seen from

(a)an elevated position

(b)an depressed position

(c)height cannot be affect

(d)ground surface

Comment

Answer is: ANA

304.

Consider the following statements
1. The focal length of the objective of a microscope is less than the focal length of the eyepiece.
2. The minimum distance between an object and its real image formed by a convex lens of focal length f is equal to it.
Which of the statement(s) given above is/are correct?

(a)only 1

(b)only 2

(c)both 1 and 2

(d)neither 1 nor 2

Comment

Answer is: CNA

305.

Which one of the following is used to remove astigmatism for a human eye?

(a)Concave lens

(b)Convex lens

(c)Cylindrical lens

(d)Prismatic lens

Comment

Answer is: CNA

306.

Electron microscope was invented by

(a)Knoll and Ernst Ruska

(b)Robert Koch

(c)Leeuwenhoek

(d)CPS Wanson

Comment

Answer is: ANA

307.

What is the essential difference between a terrestrial telescope and an astronomical telescope?

(a)One of the lenses in a terrestrial telescope is concave

(b)the final image formed in a terrestrial telescope is virtual

(c)A terrestrial telescope forms an erect image while an astronomical telescope forms an inverted image

(d)A terrestrial telescope forms an inverted image while an astronomical telescope forms an erect image

Comment

Answer is: CNA

308.

An air bubble in water will act like a

(a)convex mirror

(b)convex lens

(c)concave mirror

(d)concave lens

Comment

Answer is: DNA

309.

Total internal reflection can take place when light travels from

(a)diamond to glass

(b)water to glass

(c)air to water

(d)air to glass

Comment

Answer is: ANA

310.

According to the modern theory for nature of light, the light has

(a)particle nature only

(b)wave nature only

(c)both wave and particle(dual nature)

(d)Neither particle nature nor wave nature

Comment

Answer is: CNA

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Physics - Questions and AnswersPage 31

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