What is acoustics?
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Give an example of transverse wave?
What is larger the force the earth exerts on you or the force you exert on the earth?
What is Virtual image ?
What is melody?
What is Fahrenheit thermometer ?
Why is the earth not used as a return wire in a telephone system, while it is dine so in case of telegraph system.
Why a pen used for writing with ink is always split as its pointed end?
What sound waves travel from air to water the frequency remains?
What is the rectilinear propagation of light?
what does quantity of matter in an object denote
Explain the Rectilinear Propagation of Light ?
HOW MANY UNITS ARE CONSUMED DURING 1 HR BY 1.5 TON A/C