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Questions and Answers

What is the formula used to calculate focal length, object distance, and image distance for a convex mirror?

1f = 1/u + 1/v

-1/f = 1/u - 1/v (correct)

1/f = u + 1/v

1f = 1/u - 1/v

In which type of mirror is the image magnified and located behind the mirror when the object is inside the focus?

Concave lens

Convex mirror

Concave mirror (correct)

Plane mirror

What is the critical angle defined as?

The angle of incidence whose corresponding angle of reflection is 0 degrees

It is the same as the angle of incidence

The angle of refraction when light passes from denser to rarer medium

The angle of incidence whose corresponding angle of refraction is 90 degrees (correct)

Which type of lens produces virtual images?

Concave lens Signup and view all the answers

What is the power of two lenses in contact (P) equal to?

$P = P1 + P2$ Signup and view all the answers

What is the speed of light?

3 x 10^8 ms^-1 Signup and view all the answers

Which type of reflection occurs when light scatters off a rough surface in all directions?

Diffuse reflection Signup and view all the answers

What is the first law of reflection?

The angle of incidence is equal to the angle of reflection. Signup and view all the answers

An image formed by a convex mirror is always, (select the correct option).

A virtual, diminished and upright image. Signup and view all the answers

Where is the image located for an object placed outside the focus of a concave mirror?

In front of the mirror Signup and view all the answers