Advertisements
Advertisements
प्रश्न
What type of wavefronts are associated with a source infinity?
विकल्प
Cylindrical wavefronts
Plane wavefronts
Spherical wavefronts
All types of wavefronts
Advertisements
उत्तर
Plane wavefronts
Explanation:
A distant source is so far away that it is thought to be infinity. Rays traveling from a distant light source are assumed to be planes moving in the direction of wave propagation, and so the wavefront is a plane wavefront.
APPEARS IN
संबंधित प्रश्न
Using Huygens's construction of secondary wavelets explain how a diffraction pattern is obtained on a screen due to a narrow slit on which a monochromatic beam of light is incident normally.
What is the shape of the wavefront in the following case?
Light emerging out of a convex lens when a point source is placed at its focus.
Use Huygens' principle to verify the laws of refraction.
The refractive indices of water and diamond are `4/3` and 2.42 respectively. Find the speed of light in water and diamond. (c = 3x108 m/s)
Use Huygens’s principle to explain the formation of diffraction pattern due to a single slit illuminated by a monochromatic source of light.
Define a wavefront. Using 'Huygens' principle, draw the shape of a refracted wavefront, when a plane wave is incident on a convex lens.
According to Huygens principle, ______.
What is the geometrical shape of the wavefront for:
- Light diverging from a point source?
- The pattern of wavefront of the light from a distant star intercepted by earth?
Answer the following question briefly and to the point:
What is the phase difference between any two points lying on the same wavefront?
According to Huygens’s principle, the amplitude of secondary wavelets is ______.
