Question

In: Physics

2A) A convex mirror has radius of curvature of magnitude 20 cm. (I) its focal length...

2A)

A convex mirror has radius of curvature of magnitude 20 cm.

(I) its focal length is + 10 cm

(II) its focal length is – 10 cm

(III) it produces only virtual images.

(IV) it produces only magnified images.

	only IV
	II and III
	I and IV
	only I

2B)

An object is placed 20 cm in front of a concave mirror of radius 50 cm.

(I) the image is formed behind the mirror

(II) the image is inverted

(III) the image is magnified

(IV) the image is real

	II and III
	I and IV
	I and III
	II and IV

2C)

A mirror produces a magnified image. Therefore

(I) it is a concave mirror

(II) it is a virtual image

(III) it is a real image

(IV) the magnitude of magnification is greater than 1

	I and IV
	III and IV
	II and IV
	I and III

2D)

A mirror produces a reduced image. Therefore

(I) the magnification is negative

(II) it cannot be a concave mirror

(III) it cannot be a plane mirror

(IV) it is a convex mirror if the image is upright.

The correct answers are

	III and IV
	I and III
	II and III
	I and II

Solutions

Expert Solution

genius_generous answered 1 year ago

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