15. A concave mirror forms a real image magnified three times of the object size. If the focal length
is 15cm, the object is
(1 Point)
2.10cm
b. 20cm
30 cm
O d.15cm
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Answered by
1
answer
the answer is 30 cm
Answered by
0
Answer:
10 cm
(By using mirror formula in terms of focal length and distance of object from pole of mirror)
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