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Science Quiz on How Things Work :29.09.2020

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Question 1

What is the principle involved in the glowing of an electric bulb?

Question 2

Which of the following facts is not correct about magnets?

Question 3

Direction: Answer the following question by selecting the most appropriate option.
What is the unit of acceleration?

Question 4

When electric current is passed through a liquid or solution that conducts electricity, a physical reaction takes place in the liquid which helps in the conduction of electric current through the liquid or solution. This process is known as

Question 5

Directions: Answer the following questions by selecting the most appropriate option.
Lightning is seen before thunder is heard. It is due to

Question 6

Consider the following statement in the context of laws of reflection:

i. The angle of incidence is not equal to the angle of reflection

ii. Incident ray, reflected ray and the normal drawn at the point of incidence to the reflecting surface, lie in the same plane.

Which of the above statement is correct?

Question 7

An aqueous solution of an acid conducts electricity

Question 8

Sound is a ________________ wave.

Question 9

The loudness or softness of a sound is determined by the ________________ of the sound wave.

Question 10

The phenomenon of nuclear decay of some elements through the radiation of harmful radiations like alpha, beta and gamma rays is known as
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Sep 29CTET & State TET Exams