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Science Quiz on How Things Work :11.08.2020

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Question 1

In which of the following substances the resistance decreases with the increase in temperature?

Question 2

Directions: Answer the following questions by selecting the most appropriate option.
Why Red light is used in traffic signal for stopping the traffic?

Question 3

Directions: Answer the following questions by selecting the most appropriate option.
In which light Photosynthesis takes place faster?

Question 4

Directions: Answer the following questions by selecting the most appropriate option.
Where the magnetism of a bar magnet is zero?

Question 5

Directions: Answer the following questions by selecting the most appropriate option.
Which principle is used in Optical fibre?

Question 6

If Parallel light rays are made to fall on a convex lens they will always converge at

Question 7

Which one of the following is correct regarding heat transferred by the process of conduction?

Question 8

Boojho’s uncle has set up an electroplating factory near his village.
He should dispose-off the waste of the factory

Question 9

The measure of amount of matter in an object is defined as

Question 10

Direction: Answer the following question by selecting the most appropriate option.
By which method age of the Earth can be determined ?
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