An object of height 4.0cm is placed at a distance of 30 cm from the optical centre O of a convex lens of focal lenght 20 cm.Find the height and size of image distance from mirror.
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Answered by
4
h=4cm
u=-30cm
f=20cm
Now,
1/f=1/v+1/u
1/v=1/20-1/30
1/v=3-2/60
1/v=1/60
V=60cm
h'/h=v/u
h'=60*4/-30
h'=-8cm......
Hope it helps you dear ☺️
u=-30cm
f=20cm
Now,
1/f=1/v+1/u
1/v=1/20-1/30
1/v=3-2/60
1/v=1/60
V=60cm
h'/h=v/u
h'=60*4/-30
h'=-8cm......
Hope it helps you dear ☺️
mybossrishi:
Right
hmm
correct
hmm
Paper mei numerically solve kr skte the na diagram bna kr
Answered by
1
h=4cm
u=-30cm
f=20cm
1/v=1/f+1/u
=1/20+1/-30
=1/60
=>v=60cm
m=h'/h=v/u
=h'/4=60/-30
=h'=-8 ans
u=-30cm
f=20cm
1/v=1/f+1/u
=1/20+1/-30
=1/60
=>v=60cm
m=h'/h=v/u
=h'/4=60/-30
=h'=-8 ans
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Paper mei numerically solve kr skte the na diagram bna kr
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