Q. Heat is a type of energy that can be converted into work. Who first gave direct proof of this?
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Q. When milk is churned, the cream separates from it due to
Q. If a sound travels from air to water, the quantity that remain unchanged is
Q. Natural commutation can be used in :
Q. When a ship enters the sea from a river what will be the effect?
Q. Stationary wave is formed by
Q. 50w and 250v is marked on a lamp. Then what is the value of the current flowing in the circuit.
Q. Which one of the following instruments is used to study dispersion of light?
Q. Which one of the following statement is TRUE about the Kirchhoff's voltage law ?
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