Question

>
1 I write an experimental method in
measure the distances of object
and image using concave mirror
and write the table for observations.​

Answer 1

Answer:

To determine focal length of a given concave mirror

Materials Required :-

A concave mirror

A measuring scale

A screen holder

A mirror holder

A mirror stand

Procedure

The distance between the selected distinct object should be more than 50 ft.

The concave mirror placed on the mirror stand and the distant object should be facing each other.

The screen should be placed in front of the reflecting surface of the mirror. To obtain a clear, sharp image the screen should be adjusted.

Using a metre scale the distance between the concave mirror and screen can be determined. The distance is the same as the focal length of the given concave mirror.

Repeat the above procedure thrice to calculate the average focal length....

Answer 2

Explanation:

Materials Required

• A concave mirror

• A measuring scale

• A screen holder

• A mirror holder

• A mirror stand

• Procedure

●The distance between the selected distinct object should be more than 50 ft.

● The concave mirror placed on the mirror stand and the distant object should be facing each other.

● The screen should be placed in front of the reflecting surface of the mirror. To obtain a clear, sharp image the screen should be adjusted.

● Using a metre scale the distance between the concave mirror and screen can be determined. The distance is the same as the focal length of the given concave mirror.

● Repeat the above procedure thrice to calculate the average focal length.

Result

☆10 cm is the focal length of the concave mirror

Hope it will help you ☆☆☆