Physics, asked by swapnaminnu10, 10 months ago

A biconvex lens converges the parallel ray on the principle axis at 10cm and the foxal length is ___

Answers

Answered by tusharraj77123

1

Answer:

FOXAL LENGTH IS 20 CM

Explanation:

PRINCIPAL AXIS AT 10 CM

AXIS IS THE HALF OF THE BICONVEX LENS

SO , IT IS 10 CM × 2 = 20 CM

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