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ICSE Class 10 Physics 2023 Paper

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SECTION A
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Question : 14 of 76
Marks: +1, -0
When a ray of light travels normal to the given surface, then the angle of refraction is :
Solution:  
(c) 0∘0^{∘}
Explanation : When a ray of light strikes a surface normally, then ∠i=0∘,∴∠r=0∘∠ i=0^{∘}, ∴ ∠ r=0^{∘}.
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