H-5. (A) 3/50 (B) 6/25 (C) 0.03 (D) none of these All the listed things below are made of flint glass. Which one of these have greatest dispersive power (w). (A) prism (B) glass slab (C) biconvex lens (D) all have same o Light of wavelength 4000 Å is incident at small angle on a prism of apex angle 40. The prism has H.

All the listed things below are made of flint glass. Which one of these have greatest dispersive power ( omega ).

All the listed things below are made of flint glass. Which one of these have greatest dispersive power ( omega ).

Four elements A, B, C, D have work function 2, 2.4, 2.8, 3.2 eV. Light of wavelength 4000 Å is incident on them. The elements which emit photo electrons are

The refractive indices of the crown glass for violet and red lights are 1.51 and 1.49 respectively and those of the flint glass are 1.77 and 1.73 respectively A prism of angle 6^(@) is made of crown glass .A beam of white light is incident at a small angle on this prism.The other thin flint glass prism is combined white the crown glass prism such that te net mean deviation is 1.5^(@) anticlockwise. (i)Determine the angle of the flint glass prism. (ii)A screen is placed normal to the emerging beam at a distance of 2m from the prism combination.find the distance between red and violet spot on the screen Which is the topmost colour on screen.

The refractive indices of the crown glass for violet and red lights are 1.51 and 1.49 respectively and those of the flint glass are 1.77 and 1.73 respectively A prism of angle 6^(@) is made of crown glass .A beam of white light is incident at a small angle on this prism.The other thin flint glass prism is combined white the crown glass prism such that te net mean deviation is 1.5^(@) anticlockwise. (i)Determine the angle of the flint glass prism. (ii)A screen is placed normal to the emerging beam at a distance of 2m from the prism combination.find the distance between red and violet spot on the screen Which is the topmost colour on screen.

The refractive indices of the crown glass for violet and red lights are 1.51 and 1.49 respectively and those of the flint glass are 1.77 and 1.73 respectively A prism of angle 6^(@) is made of crown glass .A beam of white light is incident at a small angle on this prism.The other thin flint glass prism is combined white the crown glass prism such that te net mean deviation is 1.5^(@) anticlockwise. (i)Determine the angle of the flint glass prism. (ii)A screen is placed normal to the emerging beam at a distance of 2m from the prism combination.find the distance between red and violet spot on the screen Which is the topmost colour on screen.

A sphere,cylinder and cone of dimensions radius = rcm and height =2rcm are made. Which one has the greatest volume? (a) Cone. (b) Sphere (c) Cylinder (d) All have equal volume

A deviation of 2^(@) is produced in the yellow ray when prism of crown and flint glass are achromatically combined. Taking dispersive powers of crown and flint glass as 0.02 and 0.03 respectively and refractive index for yellow light for these glasses are 1.5 and 1.6 respectively. The refracting angles for crown glass prism will be ........ @ (in degree). (Round off to the Nearest Integer)

Draw a neat diagram for the passage of a ray of light through an equilateral glass prism, showing clearly (a) angle of incidence (b) angle of emergence ( c ) angle of deviation (d) angle of prism

Limiting angle of a prism is defined as the largest angle of the prism (A) for which no emergent ray is obtained. (a) Find the limiting angle (A_(0)) for a glass prism having refractive index mu . (b) A prism has limiting angle for light of wavelength lambda_(0) . Can there be any emergent ray for light of wave- length lambda lt lambda_(0) .