Question

What are the two types of spherical mirros

Answer 1

concave and convex

Explanation:

there are two type of mirror.

Answer 2

⚽ Question ⚽

• What are the two types of spherical mirros

⚽ Answer ⚽

Spherical mirrors are of two types, and they are classified as follows:

• Concave Mirror
• Convex Mirror

Concave Mirror:

• We know that a cut out of a reflective sphere is a spherical mirror. If the reflective surface is on the side curved inwards, it is a concave mirror. Concave mirrors are commonly used as shaving mirrors or by dentists and even in telescopes. The reflected image is magnified but the field of view is limited. Concave mirrors are also called converging mirrors.

Uses of Concave Mirror

Satellite Dishes:

• One of the most important uses of a concave mirror is satellite dishes. These are used to receive the weaker signals sent from the communication satellites and then amplify it. These signals strike the concave mirror in parallel rays and get reflected back. These reflected rays are concentrated at the focus of the mirror. The main purpose of this mirror is to gather weaker signals coming from large areas and concentrate them at one point.

Satellite Dishes

• Headlights in a car: A powerful source of light is kept at the focus point of the concave mirror in a smaller space at the back of the headlight. Any light striking the mirror from the focus will get reflected parallel to the axis of the concave mirror. Headlights in a car

Shaving mirror:

• Another use of concave mirror is a shaving mirror. The image formed after the reflections of the concave mirrors is helpful for people while shaving.

Convex Mirror:

• Similarly, if the reflective surface is curved outwards, it is a convex mirror. Convex mirrors are used extensively as part of car mirrors. Depending on the focal length, the reflected image is reduced in size but the field of view is more. This is very useful for drivers as the blind spots are drastically reduced. Convex mirrors are also called fish eye or diverging mirrors. You can recognize these mirrors easily as the outward bulge is quite evident most of the time.

Uses of Concave Mirror

Rearview mirror:

• The side view mirror of the car forms a small and erect image with the help of convex mirrors which helps to see the way behind the car.

Rearview mirror:

• Security mirrors in ATM: Security mirrors are kept near the ATM’s so that the bank customer can check that somebody is behind them or not.

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