Question # 1

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

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5

10

15

25

A convex lens acts as diverging lens if the object is placed at

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F

2F

Between F and 2 F

Within the F

If an object is placed with in the focal length of a convex lens, its image is formed.

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Real

Inverted

Virtual

Smaller than object

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

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15 cm

25 cm

125 cm

25 m

The light emitted from light emitting diode has wave length.

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1.1 micro meter

1.3 micro meter

1.5 micro meter

1.7 micro meter

The focal length of a concave lens is always

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+ve

-ve

Zero

None of these

Information carrying capacity of optical fibre called.

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Capacity

Band width

Immunity

Ability

Which is not the essential component of a spectrometer.

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Collimator

Telescope

Turntable

Microscope

The optical fibre is covered for protection by

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Glass jacket

Plastic jacket

Steel jacket

Diamond jacket

The diameter of a lens is called

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Focal length

Aperture

Principle axis

Centre

A convex lens can be used as

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Simple microscope

Compound microscope

Telescope

Spectrometer

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

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