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

Question # 1

The light signal in Opticla fiber must be regenerated by advice called.

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Regenerator

Generator

Repeater

Diode

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Question # 2

The types of optical fibres are

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Three

Four

Five

Six

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Question # 3

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 # 4

Critical angle is that incident angle in denser medium for which angle of refraction is.

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0 ^o

45 ^o

90 ^o

120 ^o

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Question # 5

A convex lens can be used as

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Simple microscope

Compound microscope

Telescope

Spectrometer

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Question # 6

the final image obtained by astronomical telescope is.

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Erect

Virtual

Magnified

All of these

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Question # 7

The light emitted from light emitting diode has wave length.

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1.1 micro meter

1.3 micro meter

1.5 micro meter

1.7 micro meter

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Question # 8

The diameter of a lens is called

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Focal length

Aperture

Principle axis

Centre

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Question # 9

The first person who attempted to measure the speed of light was.

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Michelson

Hygen's

Galileo

Ability

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Question # 10

Image formed by a concave lens is

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Real

Virtual

Erect

None of these

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Question # 11

The magnification of a convex lens of focal length 5 cm is equal to.

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Question # 12

The final image seen through ey piece in telescope is.

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Real, enlarge and inverted

Vertual, enlarge and erect

Virtual, enlarge and inverted

In Real, enlarge and erect

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