16:I[8216,["972","static/chunks/972-b28da0de92681928.js","47","static/chunks/47-a7f06e9eda1ac756.js","115","static/chunks/app/%5Bexam%5D/questions/%5Byear%5D/%5Bsubject%5D/%5Bchapter%5D/%5BquestionId%5D/page-7b6f0a12b9cc0206.js"],"BackButton"] 17:I[1553,["972","static/chunks/972-b28da0de92681928.js","47","static/chunks/47-a7f06e9eda1ac756.js","115","static/chunks/app/%5Bexam%5D/questions/%5Byear%5D/%5Bsubject%5D/%5Bchapter%5D/%5BquestionId%5D/page-7b6f0a12b9cc0206.js"],"QuestionViewer"] 15:T4d0,{"@context":"https://schema.org","@type":"Quiz","name":"Mht Cet 2024 Ray Optics PYQ with Solution","url":"https://pyq-test-series-platform-alsjdcxu2-sameers-projects-41c5a71e.vercel.app/mht-cet/questions/2024/physics/ray-optics/m50bdo1d","educationalLevel":"Entrance exam preparation","about":"Mht Cet / Physics / Ray Optics","hasPart":{"@type":"Question","name":"Mht Cet 2024 Ray Optics PYQ with Solution","text":"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","eduQuestionType":"mcq","acceptedAnswer":{"@type":"Answer","text":"B"},"comment":{"@type":"Comment","text":"To determine the power of the combination of two lenses in dioptres, we use the formula for the total power P of lenses in contact: P = P_1 + P_2 Where: P_1 is the power of the convex lens. P_2 is the power of the concave lens. The power P of a lens is given by: P = \\frac{1}{f} where f is the focal length in meters. Given: The focal length of the convex lens, f_1 = 40 \\text{ cm} = 0.4 \\text{ m} . The focal length of the concave lens, f_2 = 25 \\text{ cm} = 0.25 \\text{ m} . Calculate P_1 and P_2..."}}}18:T416,

To determine the power of the combination of two lenses in dioptres, we use the formula for the total power $ P $ of lenses in contact:

$ P = P_1 + P_2 $

Where:

$ P_1 $ is the power of the convex lens.

$ P_2 $ is the power of the concave lens.

The power

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