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Science · 2026 · 3 marks
CBSE 2026 · Region 4 · Set 1 · Q35
(a) Observe the given ray diagram and compare: (i) the speed of light in medium A and the speed of light in medium B. (ii) the optical densities of…
(a)
Observe the given ray diagram and compare :
(i)
the speed of light in medium A and the speed of light in medium B.
(ii)
the optical densities of medium B and medium C.
(b)
Draw a ray diagram for refraction where the optical density of medium 'A' becomes equal to the optical density of medium 'C' and optical density of medium 'B' is greater than the optical density of medium 'A' and medium 'C'.
Marking-scheme solution
(a)(i)
Speed of light in medium \(\displaystyle \mathrm{A}>\) Speed of light in medium B .
(ii) Media B and C both have same optical density.
(b)
All Light - Reflection and Refraction questions2026 question paperNCERT solutions: Light - Reflection and RefractionPractice Light - Reflection and Refraction →
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CBSE Class 10 Science past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.