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When a ray of light from air enters a denser medium, it : (a) bends away from the normal (b) bends towards the normal (c) goes undeviated (d) is reflected back. |
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Answer» When a ray of light from air enters a denser medium, it : (a) bends away from the normal (b) bends towards the normal (c) goes undeviated (d) is reflected back. |
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