Home
Class 12
PHYSICS
Find the dispersive power of flint glass...

Find the dispersive power of flint glass if the refractive indices of flint for red, green and violet light are 1.613, 1.620 and 1.632 respectively.

Text Solution

Verified by Experts

The dispersive power is `omega=(mu_v-mu_r)/(mu-1)`
`=(1.632-1.613)/(1.620-1)=0.0306`
Promotional Banner

Topper's Solved these Questions

  • DISPERSION AND SPECTRA

    HC VERMA|Exercise Worked out Examples|3 Videos

  • DISPERSION AND SPECTRA

    HC VERMA|Exercise Question for short Answer|6 Videos

  • CAPACITORS

    HC VERMA|Exercise Exercise|68 Videos

  • ELECTRIC CURRENT IN CONDUCTORS

    HC VERMA|Exercise Exercises|84 Videos

Similar Questions

Explore conceptually related problems

A crown glass prism of angle 5^@ is to be combined with a flint glass prism in such a way that the mean ray passes undeviated. Find (a) the angle of the flint glass prism needed and (b) the angular dispersion produced by the combination when white light goes through it. Refractive indices for red, yellow and viloet light are 1.514, 1.517 and 1.523 respectively for crown glass and 1.613 1.620 and 1.632 for flint glass.

White light is incident on one of the refracting surfaces of a prism of angle 50^(@) . If the refractive indices for red and blue colours are 1.641 and 1.659 respectively. The angular separation between these two colours when they emerge out of the prism is

The refractive indices of filnt glass for red and violet light are 1.613 and 1.632 respectively. Find the angular dispersion prouduced by a thin prism of flint glass having refracting angle 5^@

A flint glass prism and a crown glass prism are to be combined in such a way that the deviation of the mean ray is zero. The refractive index of flint and crown glasses for the mean ray are 1.620 and 1.518 respectively. If the refracting angle of the flint prism is 6.0^@ , what would be the refracting angle of the crown prism ?

Three thin prisms are combined as shown in figure. The refractive indices of the crown glass for red, yellow and violet rays are mu_r, mu_y and mu_v respectively and those for the flint glass are mu_r^', mu_y^' and mu_v^' respectively. Find the ratio A'/A for which (a) there is no net angular dispersion, and (b) there is no net deviation in the yellow ray.

A beam of light consisting of red,green and blue colours is incident on a right angled prism.The refractive index of the material of the prism for the above red,green and blue wavelengths are 1.39,1.44 and 1.47,respectively. The prism will:

The refractive index of glass is 1.5. Find the speed of light in glass.

The dispersive powers of crown and flint glasses are 0.03 and 0.05 respectively, The refractive indices for yellow light for these glasses are 1.517 and 1.621 respectively. It is desired to from an achromatic combination of prisms of crown and flint glasses which can produce a deviation of 1^@ in the yellow ray. Find the refracting angles of the two prisms needed.

Find the dispersive power of a prism, given that n_(v) = 1.657 and n_(R) = 1.631 .