at
concave Mirror
Mirror has a focal length of 20cm
what distance
from the mirror should a
& con tall object be placed
that it forno
image at a distance of soch from mirror
also calculate the size of image formed?
an
Answers
Answered by
3
Answer:
h' = 10cm
Explanation:
f = -20cm h = 4cm
v = 30cm
But mirror formula
1/v + 1/u = 1/f
1/u = 1/f - 1/v
= 1/-20 - 1/30
= -1/12
u = -12cm
m = -v/u = h'/h
-30/-12 = h'/4
10 = h'
h' = 10cm
Answered by
1
Answer:
bro simple your answer is 10 cm
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