Physics, asked by mansi7040, 7 months ago

a convex lens of focal length 30 cm is cut into two pieces 1.vertically 2.horizontally What will be it's new focal length

Answers

Answered by shreyasoriginalityvr

1

Answer:

Explanation:

f=20cm

p=

f

100

=5D

P

1

=P

2

=2.5D

Power of combination (b)=2.5+2.5=5D

∴f=

5

100

cm =20cm

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