Physics Which of the following is a good conductor of heat but a bad conductor of electricity ? Mica Celluloid Asbestos Rubber Mica Celluloid Asbestos Rubber ANSWER DOWNLOAD EXAMIANS APP
Physics What is the minimum velocity required for a rocket to overcome earth's gravity and travel into space? 35 km/sec 11.2 km/sec 21 km/sec 18 km/sec 35 km/sec 11.2 km/sec 21 km/sec 18 km/sec ANSWER DOWNLOAD EXAMIANS APP
Physics An electron microscope gives higher magnification than an optical microscope, because : It uses more powerful lenses The electrons have more energy than the light particles The wavelength of electrons is smaller as compared to the wavelength of visible light The velocity of electron is smaller than that of visible light It uses more powerful lenses The electrons have more energy than the light particles The wavelength of electrons is smaller as compared to the wavelength of visible light The velocity of electron is smaller than that of visible light ANSWER DOWNLOAD EXAMIANS APP
Physics The energy of a photon varies directly with its Frequency None of these Wave length Speed Frequency None of these Wave length Speed ANSWER DOWNLOAD EXAMIANS APP
Physics Optical Fibre technology works on which of these principles of Physics? Total internal reflection of Light Bernoulli's Principle Photoelectric effect Newton's law of Motion Total internal reflection of Light Bernoulli's Principle Photoelectric effect Newton's law of Motion ANSWER DOWNLOAD EXAMIANS APP
Physics A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be A horizontal straight line A vertical straight line A circle A parabola A horizontal straight line A vertical straight line A circle A parabola ANSWER DOWNLOAD EXAMIANS APP
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