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compute the position and the focal lenght of a converging lens of which will profuce the image of a lamp magnified 4 times on a screen 10cm from the lamp
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compute the position and the focal lenght of a converging lens of which will profuce the image of a lamp magnified 4 times on a screen 10cm from the lamp

User Arash Afsharpour
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1 Answer

3 votes
M=v/u
V=-4v
-5u=10
U=-2
V =8cm
1/f=1/8+1/2=1+4/8=5/8
F=8/5 M=1.6

Answer f= 1.6m
User Mokk
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