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प्रश्न
Consider a plane wave front incident on a thin convex lens. Draw a proper diagram to show how the incident wave front traverses through the lens and after refraction focusses on the focal point of the lens, giving the shape of the emergent wave front.
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उत्तर
The new position of the wavefront at any instant (called secondary wave front) is the envelope of the secondary wavelets at that instant.
Incident wave front traversing through the lens and after refraction focusing on the focal point of the lens is shown in the figure below.
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संबंधित प्रश्न
Explain the construction of plane wavefront using Huygens’ principle.
State Huygen’s principle.
Use Huygens' principle to verify the laws of refraction.
When the width of the slit is made double the original width, how would this affect the size and intensity of the central diffraction band?
Define a wavefront. Using 'Huygens' principle, draw the shape of a refracted wavefront, when a plane wave is incident on a convex lens.
Answer the following question briefly and to the point:
What is the phase difference between any two points lying on the same wavefront?
Wavefront means
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Two light beams of intensities in the ratio of 9 : 4 are allowed to interfere. The ratio of the intensity of maxima and minima ______.
