An object of height 7 cm is kept at adistance of 25 cm in front of aconcavr mirror .The focal length of the mirror is 15 cm .At distance from the mirror should ascreenwhat
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image have +sign...+9.4cm
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Heya
Mirror formula is 1/f = 1/v+1/u
1/-15 = 1/v + 1/-25
-1/15 + 1/25 = 1/v
(-5+3)/75 = 1/v
-2/75=1/v
v = -75/2 = -37.5cm
The screen should be placed at a distance of 37.5cm from the mirror to obtain a clear image.
Mirror formula is 1/f = 1/v+1/u
1/-15 = 1/v + 1/-25
-1/15 + 1/25 = 1/v
(-5+3)/75 = 1/v
-2/75=1/v
v = -75/2 = -37.5cm
The screen should be placed at a distance of 37.5cm from the mirror to obtain a clear image.
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