Explain the difference between photodiode & photocell?
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X-Ray is avoided by using ?
What is the Unit to measure pressure?
Why ate the mirage effects produced over hot deserts ?
Explain why is there more friction when you push an object than when you pull it?
For which type of waves is the principle of superposition valid?
What is the general term for the kind of material usually placed between the conducting plates of a capacitor?
while climbing a hill we bend forward. give a scientific reason for the same
What is physical significance of wave function? : quantum physics
Why are glaciers formed ?
Which friction is grater, statical or dynamical ?
What is channel?
What is the difference between emf & current