Question

which type of mirror is the surface of a lake?Why?​

Answer 1

Answer:

Regular reflection takes place on the surface of the lake because still water of lake provides a perfectly smooth surface for this

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Answer 2

Surface of lake is plane type of mirror.

• A mirror with a flat (planar) reflective surface is referred to as a plane mirror. The angle of reflection for light rays striking a planar mirror is the same as the angle of incidence.
• The angle between the incident ray and the surface normal is known as the angle of incidence (an imaginary line perpendicular to the surface).
• Therefore, a collimated beam of light does not expand out after reflection from a flat mirror, with the exception of diffraction effects, and the angle of reflection is the angle between the reflected ray and the normal.
• Plane mirror shows regular reflection which is generally seen in cases of lakes.

Hence, surface of lake is plane type of mirror.

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