an object is placed at a distance of 20cm from a convex mirror of focal length 15cm . find the position and nature of the image
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Answered by
1
Answer:
The focal length of a convex mirror is negative. Using the mirror equation we get: - 1/15 = 1/20 + 1/Di
Di = - 60/7 cm = approx. - 8.57 cm. This is acceptable, because all images produced by convex mirrors are virtual, hence NEGATIVE and they are all diminished, as it is obviously in this case (Di < Do).
Di = - 60/7 cm = approx. - 8.57 cm.
Answered by
1
Answer:
v=60/7 cms
Explanation:
FORMULAE
1/F = 1/V + 1/U
WHERE U IS NEGATIVE IN BOTH CONVEX AND CONCAVE
-1/20 + 1/v = 1/15
1/v = 35/300
v = 300/35
v = 60/7
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