An object is placed at a distance of 30cm in front of a concave mirror of focal length 10cm. At what distance from the mirror?
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Answered by
1
The mirror formula, 1/v + 1/u = 1/f
1/v = 1/f - 1/u
1/v = 0.1 - 1/30
1/v = (3-1)/30
v = 30/2
v = 15cm
1/v = 1/f - 1/u
1/v = 0.1 - 1/30
1/v = (3-1)/30
v = 30/2
v = 15cm
Answered by
32
HEYA!!!!!
After sign convention,
u = -30cm
f = -10cm
h= 6 cm
Mirror formula - 1/f = 1/u+ 1/v
1/-10= 1/-30+1/v
1/v. = 1/30 - 1/10
= 1-3/30
1/v= -2/30
v = -15..
So, the real image formed at 15cm away the mirror
After sign convention,
u = -30cm
f = -10cm
h= 6 cm
Mirror formula - 1/f = 1/u+ 1/v
1/-10= 1/-30+1/v
1/v. = 1/30 - 1/10
= 1-3/30
1/v= -2/30
v = -15..
So, the real image formed at 15cm away the mirror
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