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10th Class Physics Chapter 12 Geometrical Optics English Medium KPK Boards Online Mcqs MCQs With Answers

Question # 1

Which form of energy is sound:

Choose an answer

Electrical

mechanical

Thermal

Chemical

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Question # 2

If focal length of a lens is 1m, then its power will be:

Choose an answer

1 D

0.5 D

1.5 D

1 D

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Question # 3

When light passes through a prism it deviates from its original path due to:

Choose an answer

Reflection

Diffraction

Interference

Refraction

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Question # 4

Critical angle for diamond is:

Choose an answer

60^o

24^o

26^o

49^o

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Question # 5

The line which passes through pole of the mirror and center of curvature is called principal:

Choose an answer

axis

Focus

Line

None of these

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Question # 6

The distance of the object from the mirror is represented by :

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Question # 7

The ray of the light after reflection from concave mirror passes through:

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Centre

Principal focus

Pole

None of these

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Question # 8

The distance between principal focus and pole of mirror is called:

Choose an answer

Princpal focus

Focal length

Image

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Question # 9

Totally reflecting prism turns the incident ray at an angle of:

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90^o

60^o

75^o

45^o

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Question # 10

What does the term e-mail stand for:

Choose an answer

Emergency mail

Electronic mail

Extra mail

External mail

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Question # 11

Optical fibers work on the principle of:

Choose an answer

Refraction

Reflection

Total internal reflection

Diffraction

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Question # 12

Which types of image is produced by the converging lens of human eye if it view a distant object?

Choose an answer

Real , erect, same size

Real, inverted, diminshed

Virtual, erect,diminshed

Virtual, inverted, magnified

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Question # 13

Spherical mirrors are used in:

Choose an answer

Medical

Search light

Microscope

All of these

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