Physics Coolis tube is used to produce Gama rays X-rays Radio waves Micro waves Gama rays X-rays Radio waves Micro waves ANSWER DOWNLOAD EXAMIANS APP
Physics A periscope works on the principle of Total internal reflection Reflection Refraction Diffraction Total internal reflection Reflection Refraction Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetism at the centre of a bar magnet is minimum zero minimum or maximum maximum minimum zero minimum or maximum maximum ANSWER DOWNLOAD EXAMIANS APP
Physics Superconductors are substances which offer high resistance to the flow of current conduct electricity at low temperature conduct electricity at high temperatures offer no resistance to the flow of electricity offer high resistance to the flow of current conduct electricity at low temperature conduct electricity at high temperatures offer no resistance to the flow of electricity ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the fastest communication channel? Radio wave All are operating at nearly the same propagation speed Optical fiber Microwave Radio wave All are operating at nearly the same propagation speed Optical fiber Microwave ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of sound in moist air is more than in dry air because the moist air has Less density than dry air. Less pressure than dry air. More pressure than dry air. More density than dry air. Less density than dry air. Less pressure than dry air. More pressure than dry air. More density than dry air. ANSWER DOWNLOAD EXAMIANS APP
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