the radius of curvature of a concave mirror is 20cm. to form a magnified image behind the mirror, the position of the object from the mirror must be?
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Answered by
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Answer:
Answer is 15cm
Explanation:
R = 20cm, f = R/2 =10cm
P = ? (Distance of the object)
q =2p (from definition of magnification)
Formula for concave mirror is
1/f = 1/p + 1/q
1/f = 1/p + 1/2p
1/f = 3/2p
P = 3f/2 =(3×10cm)/2
P = 15cm
Answered by
0
Answer:
R = 20cm, f = R/2 =10cm
P = ? (Distance of the object)
q =2p (from definition of magnification)
Formula for concave mirror is
1/f = 1/p + 1/q
1/f = 1/p + 1/2p
1/f = 3/2p
P = 3f/2 =(3×10cm)/2
P = 15cm
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