HARD
Earn 100

Construct a kaleidoscope.

Important Questions on When Light Reflects

MEDIUM

In the question shape X is transformed to shape Y. Describe the transformation mathematically.

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HARD
How is the phenomenon of reflection used in making a kaleidoscope? What are the applications of a kaleidoscope?
MEDIUM
The statement given is incorrect. Write the correct statement.
Kaleidoscope is used by barbers to show the back of the head.
EASY

Mention the name of a phenomenon which takes places when patterns are formed in a kaleidoscope.

EASY
How is a kaleidoscope constructed?
MEDIUM
A student makes a device P by using three long and narrow strips of plane mirrors inclined at 60° to one another, which enables him to see beautiful patterns made by pieces of coloured glass bangles. On the other hand, another student makes a device Q by using two plane mirrors arranged parallel to each other which helps him to see a football match clearly even when some very tall persons are sitting in front of him in the ground. What are P and Q?
MEDIUM

In the question shape X is transformed to shape Y. Fill in the missing words in the description of the transformation.

A _____ squares_____ and _____ squares _____.

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EASY
How many plane mirror strips are there in a kaleidoscope? How are they arranged?
EASY
Barbers make use of a kaleidoscope.
HARD
Describe the working of a kaleidoscope with the help of a diagram.
MEDIUM
What do you understand by a kaleidoscope? State the principle on which it is based.
MEDIUM
While making a kaleidoscope, if you want to increase the number and intricacies of designs formed what would you do?
EASY

Write the quadrants in which the following points lie:

-4,7

MEDIUM
Explain the making of a kaleidoscope using three mirror strips, two rubber bands, cardboard sheet, translucent paper, and broken bangle pieces.
EASY
What is a kaleidoscope? What is its use?
MEDIUM
At what angle the mirrors are arranged in respect to each other in a kaleidoscope?
MEDIUM

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This is the logo for the Subaru car company. "Subaru" is the Japanese name for the cluster of stars known as the Pleiades in English (part of the constellation Taurus). "Subaru" also means "united" in Japanese - this expresses the idea that five companies merged to form Fuji Heavy Industries (FRI), the parent company of Subaru. So the star logo represents both a play on words and how FRI considers itself a united cluster of companies.

Describe any congruence transformations that are visible in this logo. 

HARD
Describe the construction of a kaleidoscope.
MEDIUM
Name the instruments based on multiple reflections of light.