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Questions and Answers

What is the angle of reflection when a ray of light is incident on a plane mirror?

Half the angle of incidence

90 degrees

Equal to the angle of incidence (correct)

Double the angle of incidence

When a ray of light passes from air into glass, what happens to its speed?

It remains the same

It increases

It becomes zero

It decreases (correct)

What type of mirror is used in a solar cooker to focus sunlight onto a cooking pot?

Spherical mirror

Convex mirror

Concave mirror (correct)

Plane mirror

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Questions and Answers

What is the angle of reflection when a ray of light is incident on a plane mirror?

When a ray of light passes from air into glass, what happens to its speed?

What type of mirror is used in a solar cooker to focus sunlight onto a cooking pot?

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