Question

what is concave mirror

Answer 1

$\huge\textbf{Answer}$


Whose reflecting surface is inwards is known as $\textbf{concave mirror.}$


$\textbf{Uses}$

✏ These types of mirror used as a reflector in torches.

✏ Used as a reflector in street light.

✏ Used as a shaving mirror.

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Answer 2

Answer:If a hollow sphere is cut into parts and the outer surface of the cut part is painted. Then it becomes a mirror with its inner surface as the reflecting surface This kind of mirror is known as a concave mirror. Light converges at a point when it strikes and reflects back from the reflecting surface of the concave mirror. Hence, it is also known as a converging mirror. When the concave mirror is placed very close to the object, a magnified and virtual image is obtained. But if we increase the distance between the object and the mirror then the size of the image reduces and a real image is formed. So the image formed by the concave mirror can be small or large and it can also be real or virtual.