1cm high image is obtained on a screen at a distance of 20 cm from a convex lens of focal length 10 cm whqt is the size of object
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Hi,
Data,
H2=1cm,u=-20cm,f=10cm.
1/f=1/v-1/u
1/10=1/v-(-1/20)
1/v=1/10-1/20
1/v=10/200
v=20cm.
magnification=v/u
=20/-20=-1
M=H2/H1
-1=1/H1
H1=-1cm.
plz mark as brainaist......
Data,
H2=1cm,u=-20cm,f=10cm.
1/f=1/v-1/u
1/10=1/v-(-1/20)
1/v=1/10-1/20
1/v=10/200
v=20cm.
magnification=v/u
=20/-20=-1
M=H2/H1
-1=1/H1
H1=-1cm.
plz mark as brainaist......
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