Question # 1

Reapters are placed in new system at distance of.

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30 km

50 km

80 km

100 km

A layer over the central core of the jacke is called.

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Jacket

Plastic

Cladding

Rubber

The magnifying power is also called

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Resolving power

Angular magnification

Strength of eye

None of these

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

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7

9.6

11

3.5

The speed of light was measured correctly by

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Galileo

Michelson

Newton

Maxwell

The ratio of size of image and size of object is

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Focal length

Magnification

Resolving power

Principle focus

The diameter of a lens is called

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Focal length

Aperture

Principle axis

Centre

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

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15 cm

25 cm

125 cm

25 m

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

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

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Regenerator

Generator

Repeater

Diode

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

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

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

5

10

20

The optical fiber is covered for protection by a

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Glass Jacket

Plastic Jacket

Copper Jacket

Aluminum Jacket

A convex lens can be used as

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Simple microscope

Compound microscope

Telescope

Spectrometer

The units of magnifying power of microscope or telescope are.

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Metre

m^-1

dioptre

No unit

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

the final image obtained by astronomical telescope is.

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Erect

Virtual

Magnified

All of these

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Physics Fsc Part 1 Chapter 10 Online Test MCQs With Answers

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