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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Ray Optics

Olympiad workbook · NSEP · Ray Optics

A concave mirror has a radius of curvature R and forms the image of...

A concave mirror has a radius of curvature

R

and forms the image of an object placed at a distance

1.5 R

from the pole of the mirror. An opaque disc of diameter half the aperture of the mirror is placed with the pole at the centre. As a result

Options

Athe position of the image will be the same but its central half will disappear
Bthe position of the image will be the same but its outer half will disappear
Cthe complete image will be seen at the same position and it will be exactly identical with the initial image
Dthe complete image will be seen at the same position but it will not be identical in all respect with the initial image.

Correct answer

D. the complete image will be seen at the same position but it will not be identical in all respect with the initial image.

Step-by-step solution

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