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Question: The index of refraction of diamond is 2.0, velocity of light in diamond in cm/second is approximatel...

The index of refraction of diamond is 2.0, velocity of light in diamond in cm/second is approximately

A

6×10106 \times 10 ^ { 10 }

B

3.0×10103.0 \times 10 ^ { 10 }

C

2×10102 \times 10 ^ { 10 }

D

1.5×10101.5 \times 10 ^ { 10 }

Answer

1.5×10101.5 \times 10 ^ { 10 }

Explanation

Solution

v=cμ=3×1082=1.5×108 m/s=1.5×1010 cm/sv = \frac { c } { \mu } = \frac { 3 \times 10 ^ { 8 } } { 2 } = 1.5 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } = 1.5 \times 10 ^ { 10 } \mathrm {~cm} / \mathrm { s }