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प्रश्न
A ray of light gets refracted ______ while entering the lens.
विकल्प
once
twice
thrice
doesn’t happen
MCQ
रिक्त स्थान भरें
उत्तर
A ray of light gets refracted twice while entering the lens.
Explanation:
A ray of light gets refracted twice while passing through a lens, once while entering the lens and once while emerging from the lens.
shaalaa.com
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