Physics
What is a neuron ?

Basic unit of energy
Particle released during radioactivity
Basic unit of nervous system
The anti-particle of neutron

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Physics
Which one of the following is the correct sequence of passage of light in a compound microscope?

Objective lens -Condenser -Body tube -Eye piece
Condenser -Objective lens -Body tube -Eyepiece
Eyepiece -Objective lens -Body tube -Mirror
Condenser -Objective lens -Eye -piece -Body tube

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Physics
Conservation of energy refers to the fact that

Energy cannot be created or destroyed but can be converted from one form to another
The entropy of the universe is always increasing
If you conserve energy you will not be as tired
No chemical reaction is 100 percent efficient

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