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

Question # 1

The accepted value for speed of light in vacuum

Choose an answer

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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Question # 2

If focal length of objective and eye piece is 0.5 m and 10 cm respectively then magnifying power of telescope will be.

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0.5

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Question # 3

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 # 4

For normal adjustment what is the length of astronomical telescope if focal lengths of astronomical telescope if focal lengths of objective and eye piece are 100 cm 20 cm respectively.

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10 cm

20 cm

5 cm

120 cm

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Question # 5

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 # 6

Total confined light is obtained by

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Total internal reflection

Refraction of light

Diffraction

Polarization

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Question # 7

Reapters are placed in new system at distance of.

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30 km

50 km

80 km

100 km

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Question # 8

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 # 9

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

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Question # 10

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 # 11

The magnifying power is also called

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Resolving power

Angular magnification

Strength of eye

None of these

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