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

Question # 1

Information carrying capacity of optical fibre called.

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Capacity

Band width

Immunity

Ability

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Question # 2

The diameter of a lens is called

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Focal length

Aperture

Principle axis

Centre

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Question # 3

Using a graded Index fibre, the time difference is reduced to about.

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1 ns per km

33 ns per 100 km

33 ns per km

1 ns per 100 km

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Question # 4

Total confined light is obtained by

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Total internal reflection

Refraction of light

Diffraction

Polarization

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Question # 5

Multimode step index fibre is useful for

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Long distances

Short distances

Better quality

Low price

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Question # 6

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 # 7

The speed of light was measured correctly by

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Galileo

Michelson

Newton

Maxwell

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Question # 8

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 # 9

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 # 10

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 # 11

In an object is placed in between focus point and Opticla center of a convex lens, the image formed by lens is.

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Real inverted

Virtual diminshed

Virtual inverted

Virtual erected

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