Question

1. A dental doctor uses a mirror of focal length 8 cm. To see the teeth clearly what should be the maximum distance between the teeth and the mirror? Justify your answer. Which type of mirror has been used by the doctor?

Answer 1

Answer:

doctor use concave mirror

Answer 2

Answer:

The distance should be less than the focal length and the mirror will be concave mirror.

Explanation:

Given that,

Focal length = 8 cm

When the is object placed between the pole and focal point then the image will formed large and clear.

The distance should be less than the focal length.

Doctors use the concave mirror because in this type of mirror the formed image is large and clearly.

Hence, The distance should be less than the focal length and the mirror will be concave mirror.