science
Grade-4-
Easy
Question
The law of reflection can be useful for the ____.
- Fishermen
- Plumbers
- Pool players
- All of these
Hint:
The angle of incidence is equal to the angle of reflection.
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The correct answer is: Pool players
The law of reflection defines that upon reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray, with respect to the normal to the surface that is to a line perpendicular to the surface at the point of contact.
Pool players use the laws of reflection to predict where the ball will go based on the angle it approaches the rail and judge these angles by sight.
Hence, pool players is the correct answer.
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