Home Quiz Get To Know About The Optical Instruments!
Preview (10 questions)
1 Question
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Q.

The length of time the shutter is open and the film is exposed in a camera is determined by the ___________.

Shutter speed

F-stop

Focusing

None of the above
2 Question
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Q.

The amount of light reaching the film in a camera is determined by the ___________.

Shutter speed

F-stop

Focusing

None of the above
3 Question
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Q.


A camera lens that covers the film with a field of view that corresponds approximately to that of normal vision is referred to as a ____________.

Normal lens

Telephoto lens

Wide-angle lens

Zoom lens
4 Question
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Q.

A camera lens that acts like a telescope to magnify images is referred to as a ___________.

Normal lens

Telephoto lens

Wide-angle lens

Zoom lens
5 Question
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Q.

Nearsightedness can usually be corrected with _________________.

Converging lenses

Diverging lenses

Achromatic lenses

Cylindrical lenses
6 Question
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Q.

What type of lens is a magnifying glass?

Converging

Diverging

Spherical

Cylindrical
7 Question
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Q.

An important reason for using a very large diameter objective in an astronomical telescope is ___________.

To increase the magnification

To increase the resolution

To form a virtual image, which is easier to look at


To increase the width of the field of view
8 Question
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Q.

With what color light would you expect to be able to see the greatest detail when using a microscope?

Red, because of its long wavelength

Yellow, because of its right wavelength

Blue, because of its shorter wavelength

Color does not matter.
9 Question
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Q.

Spherical lenses suffer from ______________.

Both spherical and chromatic aberration

Spherical aberration, but not chromatic aberration

Chromatic aberration, but not spherical aberration

Neither spherical nor chromatic aberration
10 Question
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Q.

 The resolving power of a microscope refers to the ability to _____________.

Distinguish objects of different colors

Form clear images of two points that are very close together

Form a very large image

Form a very bright image