Question

D. The refractive indices of flint
glass for blue and red colours
are 1.664 and 1. 644. Calculate
its dispersive power.​

Answer 1

Answer:

μ

y

=

μ

v

+

μ

r

2

=

1.664

+

1.644

2

=

1.654

∵

ω

=

μ

v

−

μ

r

μ

y

−

1

=

1.664

−

1644

1654

−

1

=

0.0305