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MHT CET 2024 (16 May, Shift 2) · Combination of Lenses

Combination of Lenses question from MHT CET 2024 (16 May, Shift 2)

Q23MHT CET 2024 · 16 MAY · SHIFT 2Easy

Combination of Lenses

An optician makes spectacles having a combination of a convex lens of focal length 40 cm in contact with a concave lens of focal length 25 cm. The power of this combination of lenses in dioptre is

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Answer: (b)

$P = P_1 + P_2 = \frac{100}{40} + \frac{100}{-25}$
$P = 2.5 - 4 = -1.5$ D
So the answer is (b) $-1.5$ .

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