Question

if speed of light in glass is 2*10 power 8 m/s and in air is 3*10power 8 m/s , calculate index of glass with respect to air​

Answer 1

Answer:

8 is the answer

Explanation:

According to Snell's Law:

sin r

sin i

=

n

1

n

2

=

v

2

v

1

and Refractive Index for air is ≈1

Substituting,

1

1.5

=

v

2

3×10

8

Therefore, v

2

=

1.5

3×10

8

=2×10

8

m/s