PPSC Physics Topic 4 MCQ Test With Answer

An important topic in the PPSC Physics Test is Geometrical Optics. In the field of Geometrical Optics, physicists study the propagation and behavior of light with the help of abstract mathematical rays. The process of abstraction of the concept of light makes it easier for the physicists to study the light when it goes from one place to the other or strikes with some material. Our understanding of the universe is nothing without the visible light that allows us to see things with our naked eyes. The importance of Geometrical Optics is therefore fundamental in the study of Physics as it enables us to understand how we see and what improvements we can make to see things better.

We at IlmKiDunya.com enable you to attempt PPSC Physics online test. With Online PPSC Physics exam preparation, you can have an idea of what questions get asked in the paper. Start the test now and test your understanding of Geometrical Optics.

MCQ's Test For PPSC Physics Topic 4 Geometrical Optics

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PPSC Physics Topic 4 Geometrical Optics

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Question # 1

A double convex an bubble in water will behave as.

Question # 2

In compound microscope, image formed by the eyepiece is

Question # 3

For total internal reflection the light rays enter

Question # 4

The phenomenon of regular refraction of light illustrates taht.

Question # 5

The bending of light when it enters a medium

Question # 6

Reciprocal of the focal length is called.

Question # 7

In a compound microscope magnification will be large if focal length of eyepiece is

Question # 8

Chromatic aberration can be removed by using.

Question # 9

Which of the following be used for redeciding mechanical aberration is optical instruments.

Question # 10

Which of the following electron wavelength is used in electron microscope.

Question # 11

When a ray of light enters a glass slab from air

Question # 12

Which eye defect can be rectified by using diverging lens.

Question # 13

Shadow formation and the pin hole camera illustrate the

Question # 14

The function of collimator in spectrometer is to

Question # 15

The distance between the optical centre and principal focus is

Question # 16

Which instrument measures the magnification of a telescope.

Question # 17

The deflection image due to oblique centric rays failing on the lens is called.

Question # 18

When of the following colours scatters minimum.

Question # 19

What would be the colour of sky n the absence of atmosphere.

Question # 20

A ray of light from air into glass The angle of incidence is 30o if the refractive index of glass in 1.52 The angle of refraction will be.

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PPSC Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 The image of an object 5 mm high is only 1 cm high. The magnification of the lens is
A. 0.2
B. 0.5
C. 1
D. 2
2 Maximum detail of an object can be seen by a microscope when the object is illuminated by light of.
A. Longer wavelegth
B. Shorter wavelength
C. X -rays
D. Gama rays
3 Two convex lens focal length 'f' use din combination become telescope. When the distance between them is.
A. 1
B. 4f
C. 2f
D. f/2
4 Which eye defect can be rectified by using diverging lens.
A. Near sightedness
B. Far sightedness
C. presbyopal
D. Astigmatism
5 The refractive index of benzenes is 1.5 What is the critical angle of benzene.
A. 0.667 o
B. 42 o
C. 48o
D. 90 o
6 Which part of hole located in the centre of the eye that allows light to enter the retina.
A. Iris
B. Pupil
C. Cornea
D. Fovea
7 The maximum number of rays required by a lens to form an image are
A. 2
B. 3
C. 4
D. Infinite
8 Michelson used the equation to determine the speed of light.
A. c = 4 fd
B. c = 8fd
C. c =12 fd
D. c = 18 fd
9 use of outer layer in optical fires called cladding is mainly to.
A. Scatter thelight
B. Absorb unwanted light
C. Transmit the light
D. Produce total internal reflection
10 In a compound microscope objective lens acts as a projector and eye place as a
A. Compensator
B. Erecting lens
C. Simple microscope lens
D. Turntable

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