Physics, asked by ajaypalsinghsi34, 4 months ago

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 XxitsmrseenuxX
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 sripranavnaidu
1

Answer:

bro simple your answer is 10 cm

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