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Time taken by the light ot travel throu...

Time taken by the light ot travel through 5 cm orf glass is same is 1.5, then x cm of air. Irf R.I. of glass is 1.5, then x is

A

7.5 cm

B

1.33 cm

C

9 cm

D

6 cm

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The correct Answer is:
A
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TARGET PUBLICATION-WAVE THEORY OF LIGHT -COMPETITIVE THINKING
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