A. A convex lens if focal length 40cm is in contact with a concave lens of focal length 25cm . The power of yhr vombination of the lenses :
A.-1.5
B.-6.5
C.+6.5
D.+6.67
Solution ??
Ans: B :/
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and b . -6.5 this is the answer
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Answer =A..
I hope its help you.
I hope its help you.
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The answer is -6.5 not -1.5
And why have u multiplied the power with 100
Shoudnt it be divided by 100 ??
Coz focal length in terms of power is always taken in meters
Yeah i figured out already ! Thanks . But the answer worries me a bit . Maybe its the mis printing of the option or dk what :)
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