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

00:00
Question # 1

Which is the health care profession concerned with eyes as well as vision visual system and vision information processing in humans.

Question # 2

The maximum distance between an object and its real image in case of convex lens is

Question # 3

Optics is the

Question # 4

What would be the colour of sky through hour the day .If the earth has no atmosphere.

Question # 5

A direct vision spectroscope is better than a prism spectrometer because it helps in

Question # 6

A real object paled inside the focus of a convex lens gives

Question # 7

If a ray of light in glass in incident on an air surface at an angle greater than the critical angle, the ray will

Question # 8

A converging mirror with a radius of 20 cm creates a real image 30 cm from the mirror What is the object distance.

Question # 9

Parallel rays of light are focused by a thin convex lens.A thin concave lens of the name focal length is then joinjed to the convex lens The focal point will.

Question # 10

Telecommunication by Optical fibers is done by

Question # 11

Which one of the following telescopes has the least length when set for parallel rays.

Question # 12

Lenses of what diameter are usually not practical.

Question # 13

Two convex lenses of equal focal length 'f' are placed in contact, the resultant focal length is

Question # 14

A fixed point inside the lens through which a ray of light does not change its path is called.

Question # 15

The diameter of a lens is called.

Question # 16

Which type of microscope was the first to be developed.

Question # 17

Which parameter is an indication of colour of a star.

Question # 18

The point midway between the lens surface on its participial axis

Question # 19

In compound microscope, image formed by the eyepiece is

Question # 20

A double convex an bubble in water will behave as.

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PPSC Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 What is true is real images formed by a converging lens.
A. they are inverted
B. They are on the same side of the lens as the object
C. They can never be shown on a screen
D. They cannot be seen
2 Refractive index of a medium is define das.
A. speed of light in vaccum/speed of light in medium
B. Speed of light in medium/Speed of light in vacuum
C. Speed o flight in air/speed of light in medium
D. Speed of light in medium/Speed of light in air
3 The ability of eye to focus near as well as distant object is termed as.
A. Myopia
B. Persistence of vision
C. Power of accommodation
D. Astigmatism
4 The object of a telescope is very large this is to have an image which is.
A. More magnified
B. Of better resolution
C. More bright
D. More clear
5 A double convex air bubble in water will behave as.
A. Plane slab
B. Concave mirror
C. Convex lens
D. Concave lens
6 Human's eye acts like a
A. LASER
B. Mirror
C. Lens
D. Fibre optics
7 In case of a convex lens, when object is placed at F
A. the image is formed beyond 2 F
B. the image is formed between F and 2 F
C. No image is formed
D. the image is formed behind the object
8 Which of the following quantities is not changed during refraction of light.
A. Its direction
B. Its speed
C. Its frequency
D. Its wavelength
9 Telecommunication by Optical fibers is done by
A. Single mode step index fibre
B. Multimode step index fibre
C. Multimode graded index fibre
D. All of the above
10 When we look at the sky during daytime the light that we see is sunlight that has been absorbed and then re radiated in different directions, This process is called.
A. Scattering
B. Diffusion
C. Mirage
D. Rainbow

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