In which medium the velocity of sound is large?
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What is a galvanometer and its use?
Is exothermic reaction useful in Lasing process? give reasion of ur answere?
If blue light is combined with green light, what color of light is produced?
When a toy balloon is filled with air and then the air is allowed to go out, why dies the balloon whiz away ?
explain Tides
What the postulates of planck’s quantum theory? : quantum physics
What is the commercial unit of electric power
Shall i get Section engineer S & T question paper? (Railway recruitment board)
Explain the Reflection of Light ?
Why does ink not spread n the paper used in the ?slick? ?
What is the difference between intrinsic and extrinsic semiconductors?
graph between frequency of photon and velocity of photo elrectron?