Physics What is the name of the device used to convert alternating current into direct current ? Ammeter Transformer Galvanometer Rectifier Ammeter Transformer Galvanometer Rectifier ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of sound in moist air is more than in dry air because the moist air has Less pressure than dry air. Less density than dry air. More density than dry air. More pressure than dry air. Less pressure than dry air. Less density than dry air. More density than dry air. More pressure than dry air. ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following supports particle nature of photons ? Polarization Interference Diffraction Photoelectric effect Polarization Interference Diffraction Photoelectric effect ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not true about X-rays? Can affect photographic plates Can be reflected or refracted Travel with the speed of light Have low penetrating power Can affect photographic plates Can be reflected or refracted Travel with the speed of light Have low penetrating power ANSWER DOWNLOAD EXAMIANS APP
Physics Intensity of sound has a subject existence no existence an object existence both subjective and objective existence a subject existence no existence an object existence both subjective and objective existence ANSWER DOWNLOAD EXAMIANS APP
Physics A person lifts luggage of 20 kg from the ground and puts it on his head 2m above the ground. Calculate the work done by him. (g = 10 ) 20 J 200J 400J 40J 20 J 200J 400J 40J ANSWER DOWNLOAD EXAMIANS APP
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