Physics In very cold countries alcohol is used as a thermometric liquid because Alcohol is a poor conductor of heat It will not stick to the glass tube Alcohol can be coloured for its level to be seen easily Its freezing point is very low Alcohol is a poor conductor of heat It will not stick to the glass tube Alcohol can be coloured for its level to be seen easily Its freezing point is very low ANSWER DOWNLOAD EXAMIANS APP
Physics Fibre optics work on the principle of Total internal absorption Total internal reflection Scattering of light Optical rotation Total internal absorption Total internal reflection Scattering of light Optical rotation ANSWER DOWNLOAD EXAMIANS APP
Physics The audio signals of TV are Unmodulated Velocity modulated Amplitude modulated Frequency modulated Unmodulated Velocity modulated Amplitude modulated Frequency modulated ANSWER DOWNLOAD EXAMIANS APP
Physics The waveform of a certain signal can be studied by Sonometer Cathode ray oscilloscope Spectrometer P – n junction diode Sonometer Cathode ray oscilloscope Spectrometer P – n junction diode ANSWER DOWNLOAD EXAMIANS APP
Physics Sound waves cannot travel in Water Hydrogen gas Vacuum Glass Water Hydrogen gas Vacuum Glass ANSWER DOWNLOAD EXAMIANS APP
Physics Negative feedback in amplifiers Increases bandwidth and increases noise Decreases bandwidth and decreases noise Decreases bandwidth and increases noise Increases bandwidth and decreases noise Increases bandwidth and increases noise Decreases bandwidth and decreases noise Decreases bandwidth and increases noise Increases bandwidth and decreases noise ANSWER DOWNLOAD EXAMIANS APP
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