Question

1 What is a Kaleidoscope and Periscope?
2 Write the uses of periscope.
3. If the angle between the plane mirror and the incident ray is 20
what is the angle between the reflected ray and the plane mirror ​

Answer 1

Answer:

Here!!!

Explanation:

1) Kaleidoscope is used to make symmetric patterns. Fashion designers use this for making different patterns. It is also used as a toy for children. The main use of periscopes is in submarines that remain under water.

2) It is used in submarines to determine the distance of a torpedo and helps in deciding the right time for the attack.

It is used in nuclear reactor to observe the chemical reactions that are taking place.

Answer 2

Answer:

KALEIDOSCOPE=It is a tube containing mirror and coloured fragmentation which produce changing patterns when the tube is rotated. PERISCOPE=It is a optical instrument with which a person cam see around corners and other obstructions

Explanation:

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