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Geometrical Optics - SS2 Physics Past Questions and Answers - page 1

1

Which of the following is true about the law of reflection?

A

The angle of incidence is equal to the angle of refraction.

 

B

The angle of incidence is greater than the angle of reflection.

 

C

The angle of incidence is equal to the angle of reflection.

 

 

D

The angle of incidence is perpendicular to the surface.

2

In a plane mirror, the image formed is:

A

Real, inverted, and magnified.

 

B

Real, upright, and magnified.

 

 

C

Virtual, inverted, and magnified.

 

D

Virtual, upright, and the same size.

3

The focal length of a concave mirror is:

A

Positive.

 

B

Negative.

 

C

Zero.

 

D

Infinite.

4

When an object is placed between the focal point and the centre of curvature of a concave mirror, the image formed is:

A

Real, inverted, and magnified.

 

B

Real, upright, and magnified.

 

C

Virtual, inverted, and magnified.

 

D

Virtual, upright, and the same size.

5

Explain the laws of reflection and discuss their significance in the reflection of light. Provide examples to support your explanation.

6

Discuss the formation of images by plane and curved mirrors, considering the characteristics of the images formed. 

7

When light passes from a rarer medium to a denser medium, which of the following statements is true?

A

The speed of light increases.

 

B

The wavelength of light increases.

 

C

The angle of refraction is greater than the angle of incidence.

 

D

The frequency of light remains constant.

8

Which of the following materials has the highest refractive index?

A

Air

 

B

Water

 

C

Glass

 

D

Diamond

9

The bending of light as it passes from one medium to another is known as:

A

Diffraction

 

B

Reflection

 

C

Refraction

 

D

Dispersion

10

When light passes from a denser medium to a rarer medium, which of the following statements is true?

A

The speed of light decreases.

 

B

The angle of incidence is greater than the angle of refraction.

 

C

The frequency of light decreases.

 

D

The wavelength of light decreases.

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