Physics, asked by vikaslokesh1234, 1 year ago

66. Two lens of focal lengths -20cm and +10cm
are put in combination, find the power of the
combination
(2011)
1)-ID 2) -2D 3) +5D 4) +2D
197

Answers

Answered by thamai

2

Answer:

option is 4 - +5Di think so

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