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

Question # 1

The final image formed by a simple microscope.

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Virtual and inverted

Real and erected

Virtual and erected

Real and inverted

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Question # 2

If a convex lens is used as a magnifying glass, whcih lens will give higher magnification that has.

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Short size

Long focal length

Large size

Short focal length

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Question # 3

The Detector in Photo phone is made up of.

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Cadmium

Germanium

Selenium

Silicon

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Question # 4

Information carrying capacity of optical fibre called.

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Capacity

Band width

Immunity

Ability

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Question # 5

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 # 6

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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Question # 7

__ 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 # 8

The magnifying power of a convex lens of focal lendth 10 cm is

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9.6

3.5

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Question # 9

The units of magnifying power of microscope or telescope are.

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Metre

m^-1

dioptre

No unit

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Question # 10

Multimode graded index fibre has a core whose diameter range lie from.

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5 to 50 micro meter

50 to 100 micro meter

40 to 1000 micro meter

50 to 10,000 micrometer

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Question # 11

The accepted value for speed of light in vacuum

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2.99 x 10⁸m - sec^-1

2.99 x 10⁶m - sec^-1

2.99 x 10⁸km - sec^-1

2.99 x 10⁸m - h^-1

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