Physics-
General
Easy
Question
A converging lens 
of focal length 20 cm is separated by 8 cm from a diverging lens 
of focal length 30 cm. A parallel beam of light falls on after passing through is focused at point 
. Calculate V. Repeat the calculation for the case when the parallel beam first falls on .
- (40 cm,
)
- (20 cm, 35.3 cm)
- (20 cm, 42.2 cm)
- (60 cm, 20 cm)
)
The correct answer is: (20 cm, 42.2 cm)
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