Question

Refractive index Refractive index
3. Complete the following table :
Velocity in the
Velocity in the
first medium second medium
3 x 108 m/s
1.2 x 10% m/s
n​

Answer 1

Answer:

Velocity from the air into glass(v)=1.2×10 power 8m/s

Velocity in the vacuum(C)=3×10 power 8m/s

Refractive index(Meu)=?

Refractive index=C÷V

=3×10 power 8÷1.2×10 power 8

= 30×10 power 8÷12×10power 8

=2.5×10 power 8