Advertisements
Advertisements
Question
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.
Advertisements
Solution
The shape of the wavefront in the case of a light emerging out of a convex lens when a point source is placed at its focus is a parallel grid. This is shown in the given figure.
RELATED QUESTIONS
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.
Explain the construction of plane wavefront using Huygens’ principle.
What is the shape of the wavefront in the following case?
The portion of the wavefront of light from a distant star was intercepted by the Earth.
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)
Using this principle draw a diagram to show how a plane wave front incident at the interface of the two media gets refracted when it propagates from a rarer to a denser medium. Hence verify Snell's law of refraction.
Derive the law of reflection using Huygen’s Wave Theory.
According to Huygens principle, ______.
According to Huygen's construction, relation between old and new wavefront is ______.
How is a wavefront different from a ray?
What type of wavefronts are associated with a point source of light?
Represent diagrammatically how the incident planar wavefronts of wavelength λ pass through an aperture of size d, when d is approximately equal to λ.
Who was the founder of the wave theory of light?
Which book by Christiaan Huygens is cited as an important work?
What improved devices did Christiaan Huygens design?
What did Christiaan Huygens discover about Saturn?
Given the shape of a wavefront at any time, what does Huygens' principle allow to be determined?
How do wavelets emanating from points on a wavefront spread?
