how to find the focal length of lens? explain this question in an experimental way.
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Answered by
3
we can find the focal length of convex lens experimental ly by u - v method
distance between lens and object is u.
distance between lens and image is v.
substitute in lens formula to get answer.
distance between lens and object is u.
distance between lens and image is v.
substitute in lens formula to get answer.
motupallisai:
thank you
Answered by
1
for this we have a special method called uv method.
where, U=object distance
V=image distance
PROCEDURE OF EXPERIMENT
-Take a candle and place it 60cm away from a convex lens such that it lies along the PA.
- Now the most important part is adjust the screen so that you can take the readings of image distance and object distance carefully.
- Now, after getting 3 to 4 readings you can find the focal length from the mean of the values.
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