the image of an object is formed real and inverted at a distance of 60cm from concave mirror of focal length 20cm find where the object was placed
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Answered by
1
Answer:
the object was placed 30cm in the front of the mirror.
Answered by
0
Answer:
u = 30 cm
Explanation:
We have given :
Focal length = 20 cm
Image distance = 60 cm
We have to find object distance .
We know :
1 / f = 1 / v + 1 / u
Since image formed is real :
f = - 20 cm and v = - 60 cm
1 / u = 1 - 3 / 60
u = - 30 cm
Hence object should be placed at distance of 30 cm .
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