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Physics English Medium Fsc Part 1 Chapter 10 Online MCQs Test MCQs With Answers

Question # 1

The least distance of distinct vision for the normal eye is.

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15 cm

25 cm

125 cm

25 m

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Question # 2

__ will travel faster than other through an optical fibre.

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Ultraviolet light

Visible light

Infrared light

White light

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Question # 3

Total confined light is obtained by

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Total internal reflection

Refraction of light

Diffraction

Polarization

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Question # 4

Multimode step index fibre is useful for

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Long distances

Short distances

Better quality

Low price

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Question # 5

The diameter of a lens is called

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Focal length

Aperture

Principle axis

Centre

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Question # 6

In Michelson's experiment the relation used to find the speed of light is

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16 fc

1/16 fd

16 fd

16/fd

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Question # 7

If the object is at 5 cm from the lens of simple microscope than its magnifying power will be.

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Question # 8

Image formed by a concave lens is

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Real

Virtual

Erect

None of these

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Question # 9

More details of an object can be seen with a microscope by using

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Green light

Red light

Yellow light

Blue light

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Question # 10

The minimum distance from eye at which an object appears to be distinct is

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Near point

Focal length

Image distance from lens

Object distance from lens

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Question # 11

The magnifying power of an astronomical telescope is 10. If the focal length of objective is 100 cm, then what is the focal length of eye piece.

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10 cm

100 cm

1000 cm

5 cm

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