PPSC Physics Chapter 4 Geometrical Optics

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  • Chapter NameSection D: Geometrical optics
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PPSC Physics Chapter 4 Geometrical Optics

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PPSC Physics Chapter 4 Geometrical Optics

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Question # 1

What is the type of corrective lens used to correct or enhance the vision is only one eye.

Question # 2

The refractive index of benzenes is 1.5 What is the critical angle of benzene.

Question # 3

A convex lens of focal length 6 cm to be used to from a virtual image three times the size of the object Where must the lens be placed.

Question # 4

The relation between angle of incidence and angle of refraction is known as.

Question # 5

The image formed on the film of a simple camera is.

Question # 6

In a magnifying glass, the objective is placed at a distance

Question # 7

The branch of medicine which deals with the anatomy physiology and diseases of the eye

Question # 8

A double convex lens acts as diverging lens when the object is.

Question # 9

The focal length of a thin converging lens is 10 cm What is the maximum distance from the lens that the object can be placed so the lens acts as a magnifying glass.

Question # 10

Which type of image is formed by a concave lens on a screen.

Question # 11

The phenomenon of total internal reflection occurs in

Question # 12

Persistence of vision is the phenomenon of the eye by which an afterimage is thought to persist for approximately one twenty faith of a second on the.

Question # 13

When of the following colours scatters minimum.

Question # 14

When light enters a denser medium

Question # 15

The line passing symmetrically though the optical center of the lens is.

Question # 16

Rainbows and mirage are formed by

Question # 17

Power of lens is measured in

Question # 18

The image of distant object as seen through as astronomical telescope is.

Question # 19

Which of the following is a transport optical element with flat polished surfaces that refract light.

Question # 20

Optics is the

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