CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Refraction of Light through a Prism

The refractiv...

Question

The refractive indices of flint glass for red and violet light are 1.613 and 1.632 respectively. Find the angular dispersion produced b a thin prism of flint glass having refracting angle is $15^{0}$

A

0.0305

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

0.0502

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

0.405

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

0.285

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D 0.285
$\begin{matrix} D e v i a t i o n o f l i g h t δ = (μ - 1) A D e v i a t i o n o f r e d l i g h t δ_{r e d} = (μ_{r e d} - 1) A a n d t h a t o f t h e v o i l e t l i g h t δ_{v i o l e t} = (μ_{v i o l e t} - 1) A T h e d i s p e r s i o n = δ_{v i o l e t} - δ_{r e d} = (μ_{r e d} - 1) A - (μ_{v i o l e t} - 1) A = (μ_{v i o l e t} - μ_{r e d}) A = (1.632 - 1.612) \times 15^{0} = {0.285}^{0} \end{matrix}$
Hence,
option $(D)$ is correct answer.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Find the dispersive power of flint glass. The refractive indices of flint glass for red, yellow and violet lights are

1.613, 1.620

1.632

Q. Define the dispersive power of an optical medium. Refractive indices for violet, yellow and red colours of light are respectively

1.632, 1.620, 1.613

for flint glass. Find the dispersive power of the material of flint glass.

Q. A crown glass prism of angle

5^{\circ}

is to be combined with a flint glass prism in such a way that the mean ray passes undeviated. The angle of flint glass prism is

A^{'}

and angular deviation produced by the combination when white light goes through it is

δ

. Refractive indices for red, yellow and violet light are

1.514, 1.517

1.523

respectively for crown glass and

1.613, 1.620

1.632

for flint glass. Then :

Q. A crown glass prism of refracting angle

8^{0}

is combined with a flint glass prism to obtain deviation without dispersion. If the refractive indices for red and violet rays for the crown glass are 1.514 and 1.524 and for the flint glass are 1.645 and 1.665 respectively, the net deviation is

Q. In a direct vision spectroscope, there are two flint glass prisms, each of angle

6^{\circ}

, and three crown glass prisms. The dispersive powers of flint and crown glasses are

0.37

0.23

respectively and their refractive indices for mean color are

1.632

1.554

respectively. The net dispersion produced by the system of prisms is:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Refraction of Light through a Prism_Tackle

PHYSICS

Watch in App

explore_more_icon

Explore more

Refraction of Light through a Prism

Standard X Physics

Join BYJU'S Learning Program

CrossIcon