Math, asked by srishti3794, 5 months ago

fA convex lens of focal length f₁ and a concave lens of focal
length f₂ are placed in contact. The focal length of the
combination is
(a) (f₁ + f₂) (b) (f₁ – f₂)
(c)f₁f₂/f₂ - f₁ (d) f₁f₂/f₂ + f₁

Answers

Answered by PRASENJITGAMER

4

Answer:

hink 16:9 is correct may be it incorrect

Answered by syedaaminasadaf8

3

Step-by-step explanation:

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