convex lens
u= 50cm
V=50cm
Answers
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2
Answer:
isma kya Karna hai......
Answered by
0
Answer:
hiiiiiiii
Explanation:
lens formula....
1/f=1/v-1/u
u= -50cm. v = 50cm
= 1/50+1/50
= 2/50
= 1/25
f = 25 cm
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