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Rectilinear propagation of light

What is a poi...

Question

What is a point source of light?

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Solution

A point source of light is an identifiable confined source of light from which light is emitted.
Example-Light passing through a pinhole, the Sun, the light bulb, etc.

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Similar questions

What is the shape of the wavefront in each of the following cases:

(a) Light diverging from a point source.

(b) Light emerging out of a convex lens when a point source is placed at its focus.

(c) The portion of the wavefront of light from a distant star intercepted by the Earth.

A source of light which is larger than a point source of light is called?

Q. The intensity of light due to a point light source is inversely proportional to the square of the distance from the source.
If the intensity of light due to a point light source is

16 W a t t s / m^{2}

at a distance of 3.0 m from the source, what is the intensity at a distance of 12.0 m from the source?

Q. What is the shape of the wavefront diverging from a point source of light?

Q. What type of wavefront will emerge from a 1) Point source 2) Distant light source

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Rectilinear propagation of light

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