Tell me how we are getting light from electrical bulb?
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Why dies a small quantity of air introduced into the top of the barometer tube depress the level of mercury ?
Which animals communicate on under water sounds?
Why does bluing make things whiter ?
Which element has the simplest absorption spectrum?
Explain the difference between photodiode & photocell?
Explain how does the elevation and air pressure affect the boiling point of water?
What is the difference between emf & current
Explain about Binocular?
What formula is most appropriate to compute the kinetic energy of a block of ice sliding down an inclined plane?
What is master oscillator?
Why it becomes bitterly cold as soon as the snow starts melting?
Explain the balanced field takeoff?