The shape of wave front at a very large distance from source is ______

Circular

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Spherical

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Cylindrical

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Plane

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Solution

The correct option is D Plane
Due to the large distance, the radius of the wavefront can be considered as large (infinity) and hence, a wavefront is almost plane.

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The shape of wave front at a very large distance from source is ______

The correct option is D PlaneDue to the large distance, the radius of the wavefront can be considered as large (infinity) and hence, a wavefront is almost plane.

The correct option is D Plane
Due to the large distance, the radius of the wavefront can be considered as large (infinity) and hence, a wavefront is almost plane.