pls quickly anser this
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Answered by
1
u= -40
let
h=x
h'=2x
according to mirror formula
h'/h= -v/u
2x/x= -v/40
by cross multiplication
-40x = 2x-v
v= 2x +40x
v=42x..
let
h=x
h'=2x
according to mirror formula
h'/h= -v/u
2x/x= -v/40
by cross multiplication
-40x = 2x-v
v= 2x +40x
v=42x..
yashwa:
but the answer is 10cm
but how?
i dont know the steps but it is given that 10cm
hmm ok i am going to check again my solution
Answered by
0
Answer is R=-40cm
F=-20cm
Hope helps you
F=-20cm
Hope helps you
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