Question # 1

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

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

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15 cm

25 cm

125 cm

25 m

The ratio of size of image and size of object is

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Focal length

Magnification

Resolving power

Principle focus

Image formed by a concave lens is

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Real

Virtual

Erect

None of these

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

The diameter of a lens is called

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Focal length

Aperture

Principle axis

Centre

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 final image seen through ey piece in telescope is.

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Real, enlarge and inverted

Vertual, enlarge and erect

Virtual, enlarge and inverted

In Real, enlarge and erect

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

__ will travel faster than other through an optical fibre.

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Ultraviolet light

Visible light

Infrared light

White light

The types of optical fibres are

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Three

Four

Five

Six

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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