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Physics

Physics
An object which absorbs all colours and reflects none appears:

White
Black
Grey
Blue

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Physics
Out of the following, which is not emitted by radioactive substance?

Alpha particles
Electromagnetic radiations
Neutrons
Electrons

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Physics
The phenomenon of change in direction of light when it passes from one medium to another is called

Refraction
Reflection
Propagation
Dispersion

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Physics
The intensity ratio of waves is 25 : 9. What is the ratio of their amplitudes?

0.21041666666667
0.12847222222222
1.0479166666667
2.0958333333333

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Physics
The device used to convert solar energy into electricity is

Photovoltaic cell
Daniell cell
Electrochemical cell
Galvanic cell

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Physics
A gas thermometer is more sensitive than a liquid thermometer because a gas :

Is easy to obtain
Does not change state easily
Is lighter than liquid
Expands more than a liquid

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MORE MCQ ON Physics

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