a 5 cm tall object is placed at a distance of 20 cm from a concave mirror of focal length 30 centimetre use mirror formula to determine the position and size of the image formed
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4 cm is the answers and 6 cm is the size of the image .
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According to the above details, we can take;
Height of an object h = 5 cm
Distance of object u = -20 cm
Focal length f = -30 cm
According to mirror's formula
1/f = 1/v + 1/u
V = 60 cm
The image is formed at 60 cm
The height of the image is
M = h’/h
H’ = 15 cm
The answer to this question is about 15cm.
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