Question

determine the focal length of concave mirror by two-pin method​

Answer 1

Answer:

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Answer 2

Focal length of concave mirror by two- pin method:

•Firsr calculate the focal length of the given mirror by using a relation:

f=uv/(u+v)

•To do this method required materials are as follows:

-concave mirror

-Retort Stand

-2 pins stand

- Candle

-Matches

-Ruler

-Screen

•By using above formula we can find the focal length.