Physics When an electric bulb breaks, there is an explosive sound. That is due to The air outside rushing in to fill the vacuum inside the bulb The compressed gases inside rushing out suddenly None of these The chemical reaction between the gases inside the bulb The air outside rushing in to fill the vacuum inside the bulb The compressed gases inside rushing out suddenly None of these The chemical reaction between the gases inside the bulb ANSWER DOWNLOAD EXAMIANS APP
Physics The waveform of a certain signal can be studied by P – n junction diode Spectrometer Cathode ray oscilloscope Sonometer P – n junction diode Spectrometer Cathode ray oscilloscope Sonometer ANSWER DOWNLOAD EXAMIANS APP
Physics The value of coefficient of restitution in perfectly elastic collision is 0.5 2 1 0.5 2 1 ANSWER DOWNLOAD EXAMIANS APP
Physics What type of lens is used in a magnifying glass Plano-concave Concave Convex None of these Plano-concave Concave Convex None of these ANSWER DOWNLOAD EXAMIANS APP
Physics The surface tension of water on adding detergent to it Becomes zero Decreases No change Increases Becomes zero Decreases No change Increases ANSWER DOWNLOAD EXAMIANS APP
Physics The ''Greenhouse effect' is mainly due to increase in atmospheric Carbon dioxide Nitrogen Ozone Sulphur dioxide Carbon dioxide Nitrogen Ozone Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
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