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12th ICSE
IMPORTANT
Earn 100

Define wavefront. How is it related to the direction of the corresponding rays?

Important Questions on Wave Nature of Light : Huygens' Principle

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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 6 - Wave Nature of Light : Huygens' Principle>QUESTIONS>Q 2

When monochromatic light is incident on a surface separating two media, both the reflected and the refracted light have same frequency as the incident light. Why?

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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 6 - Wave Nature of Light : Huygens' Principle>QUESTIONS>Q 3

When light travels from a rarer to a denser medium, it loses speed. Does this loss imply a reduction in energy carried by the light waves?

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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 6 - Wave Nature of Light : Huygens' Principle>QUESTIONS>Q 4
A light pulse is sent through a medium. Will it retain its shape?
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 6 - Wave Nature of Light : Huygens' Principle>QUESTIONS>Q 5
What is the geometrical shape of the wavefront for light diverging from a point-source?
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 6 - Wave Nature of Light : Huygens' Principle>QUESTIONS>Q 5
What is the geometrical shape of the wavefront for light emerging out of a convex lens when a point-source is placed at the focus of the lens?
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 6 - Wave Nature of Light : Huygens' Principle>QUESTIONS>Q 5

What is the geometrical shape of the wavefront for the portion of wavefront of light from a distant star intercepted by the earth?

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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 6 - Wave Nature of Light : Huygens' Principle>QUESTIONS>Q 5
What is the geometrical shape of the wavefront for sunlight focussed by a convex lens?
MEDIUM
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 6 - Wave Nature of Light : Huygens' Principle>QUESTIONS>Q 6

Sketch the wavefronts corresponding to converging rays.