Question

How is a periscope helpful?

Answer 1

Explanation:

A periscope lets you look around walls, corners or other obstacles. ... A periscope is a useful example of the law of reflection at work. It's important that your mirrors are placed at a 45° angle, because light always reflects away from a mirror at the same angle that it hits it.

Answer 2

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A periscope lets you look around walls, corners or other obstacles. Submarines have periscopes so that people inside can what is on the surface of the water.

A periscope is a useful example of the law of reflection at work. It’s important that your mirrors are placed at a 45° angle, because light always reflects away from a mirror at the same angle that it hits it. In a periscope, light from an object strikes the top mirror at 45° and bounces off at the same angle. This sends light directly down the tube and onto the lower mirror. This mirror, also at a 45° angle, reflects light directly to your eye.

Objectives

• Describe how light rays can change direction.
• Demonstrate how visible light is reflected.

hope it helps you

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