Explain the difference between a lens and a mirror?
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Explain what is meant by 4th dimension?
In Einstein's mass energy relation E=mc2 why velocity of light is used and never ordinary velocities?what is the exact explanation?
What is the difference between intrinsic and extrinsic semiconductors?
How we are getting light from electrical bulb.Please brief in detail.
Explain what is cardiac output?
Two bulbs, one of 600W and the other of 100W having same voltage rating are connected in series across the supply in a room.Which bulb will glow brighter? If one of the bulb is switched off, what will be effect on illumination?
Shall i get Section engineer S & T question paper? (Railway recruitment board)
Why a capacitor is a voltage sensitive device?
What is Oxidation ?
How many pounds does one gallon of water weigh?
Explain what is the proper formula used to calculate acceleration?
What is the difference between a lens and a mirror?