SOLUTION: Formula for focal length of a lens is 1/v +1/u =1/f Find f if u=27cm v= 30cm Thank you kindly

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Question 1195299: Formula for focal length of a lens is 1/v +1/u =1/f
Find f if u=27cm v= 30cm
Thank you kindly
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Formula for focal length of a lens is 1/v +1/u =1/f
Find f if u=27cm v= 30cm
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1/f = 1/30 + 1/27
Solve for f