हिंदी

Draw the shape of refracted wavefront when the plane incident wave undergoes refraction from optically denser medium to rarer medium. Hence prove Snell’s law of refraction. - Physics

Advertisements
Advertisements

प्रश्न

Draw the shape of refracted wavefront when the plane incident wave undergoes refraction from optically denser medium to rarer medium. Hence prove Snell’s law of refraction.

संक्षेप में उत्तर

उत्तर

Proof: n1 sin i = n2 sin r  .....(Derivation)

This is the Snell’s law of refraction.

shaalaa.com
Snell’s Law
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
2021-2022 (April) Term 2 Sample

संबंधित प्रश्न

Derive Snell’s law on the basis of Huygen’s wave theory when the light is travelling from a denser to a rarer medium.


Calculate the speed of light in a medium whose critical angle is 45°. Does critical angle for a given pair of media depend on the wavelength of incident light ? Give reason.


Trace the path of a ray of light passing through a glass prism (ABC) as shown in the figure. If the refractive index of glass is `sqrt3`, find out the value of the angle of emergence from the prism.


Find a critical angle for glass and water pair, given the refractive index of glass, is 1 ·62 and that of water is 1 ·33.


Derive Snell’s law of refraction using Huygens’s wave theory.


Answer the following question.
Define the term, "refractive index" of a medium. Verify Snell's law of refraction when a plane wavefront is propagating from a denser to a rarer medium.


A small bulb is placed at the bottom of a tank containing water to a depth of 80 cm. What is the area of the surface of water through which light from the bulb can emerge out? Refractive index of water is 1.33. (Consider the bulb to be a point source.)


According to Snell’s law, ______.


If light passes near a massive object, the gravitational interaction causes a bending of the ray. This can be thought of as happening due to a change in the effective refractive index of the medium given by n(r) = 1 + 2 GM/rc2 where r is the distance of the point of consideration from the centre of the mass of the massive body, G is the universal gravitational constant, M the mass of the body and c the speed of light in vacuum. Considering a spherical object find the deviation of the ray from the original path as it grazes the object.


A ray of light is incident on a glass prism of refractive index µ and refracting angle A. If it just suffers total internal reflection at the other face, obtain a relation between the angle of incidence, angle of prism and critical angle.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×