Two parallel beams of electrons are moving in the same direction. Does they repel or attract each other?
Explain what is the rectilinear propagation of light?
How much does automotive oil weigh?
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What is the difference between intrinsic and extrinsic semiconductors?
Explain planck’s hypothesis or what the postulates of planck’s quantum theory? (Or) what are the assumptions of quantum theory of black body radiation? : quantum physics
what is meant patch cards..
why we need complex no. in physical world?
A 100W bulb and 60 bulb both rated at 220V are connected in series across 220V supply. If 60W bulb is removed and only 100W bulb remains in the circuit, will illumination increase or decrease?
Why does bluing make things whiter ?
According to coulombs law, if two charged particles are repelled with a given force at a distance d, by what multiple will the force decrease by if d is increased by 4times?
Explain the Phosphorescence ?
What is meant by reflection of waves?