Question # 1

The speed of light was measured correctly by

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Galileo

Michelson

Newton

Maxwell

The magnifying power is also called

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Resolving power

Angular magnification

Strength of eye

None of these

The ability of reveal the minor details of an object under examination is called.

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Resolving power

Magnification

Scattering

Reflection

Reapters are placed in new system at distance of.

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30 km

50 km

80 km

100 km

The optical fibre is covered for protection by

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Glass jacket

Plastic jacket

Steel jacket

Diamond jacket

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

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

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Regenerator

Generator

Repeater

Diode

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

Image formed by a concave lens is

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Real

Virtual

Erect

None of these

The focal length of convex lens

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Negative

Positive

small

Large

Total confined light is obtained by

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Total internal reflection

Refraction of light

Diffraction

Polarization

The focal length of a concave lens is always

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+ve

-ve

Zero

None of these

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

A convex lens can be used as

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Simple microscope

Compound microscope

Telescope

Spectrometer

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

The device used to study the spectra from different sources of light is

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Telescope

Optical fibre

Spectrometer

Microscope

The optical fiber is covered for protection by a

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Glass Jacket

Plastic Jacket

Copper Jacket

Aluminum Jacket

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Physics Fsc Part 1 Chapter 10 Online Test MCQs With Answers

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