Why does a glass filled with water shatter when you run your finger along the rim of the glass?
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What is Real image ?
Why does it take longer to heat a bucket of water than a cup of water?
What is Reduction ?
while climbing a hill or mountain we bend forward. give a scientific expalantion in a simple way
When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is such that it acts a) In the backward direction on the front wheel and in the forward direction on the rear wheel. (b) In the forward direction on the front wheel and in the backward direction on the rear wheel. (c) In the backward direction on both the front and rear wheels. (d) In the backward direction on both the front and rear wheels.
Explain the Modes of Transfer of Heat ?
Describe the Infra-red and Ultra-voilet rays?
What is Steady State Load & Transient Load?
Why does a semicondctor act as an insulator at 0'k and why its conductivity increases with increasing temperature?
Why is it easier to swim in sea water than in the river water?
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?
Explain the Air Pressure Machines ?