Physics For which one of the following does the centre of mass lie outside the body? A cricket ball A ring A fountain pen A book A cricket ball A ring A fountain pen A book ANSWER DOWNLOAD EXAMIANS APP
Physics Man perceives sound vibrations in the frequency ranges of 6 – 10 Hz 0 – 5 Hz 20 – 20000 Hz 11 – 20 Hz 6 – 10 Hz 0 – 5 Hz 20 – 20000 Hz 11 – 20 Hz ANSWER DOWNLOAD EXAMIANS APP
Physics What measures Air pressure? Bolometer Barometer Spectrometer Barkometer Bolometer Barometer Spectrometer Barkometer ANSWER DOWNLOAD EXAMIANS APP
Physics It is dangerous to observe Solar eclipse with naked eyes because Cosmic rays reach eyes more during the eclipse All radiations from sun initiate chemical reactions in eyes Infrared radiations from sun burn our retina Ultraviolet radiations from Sun burn our retina Cosmic rays reach eyes more during the eclipse All radiations from sun initiate chemical reactions in eyes Infrared radiations from sun burn our retina Ultraviolet radiations from Sun burn our retina ANSWER DOWNLOAD EXAMIANS APP
Physics When a vehicle passes, TV reception gets distorted. This is because Spark plug creates electromagnetic disturbances Metal reflects radiowaves Vehicle pollution affects the performance of the TV components Modern vehicles use electroignition system Spark plug creates electromagnetic disturbances Metal reflects radiowaves Vehicle pollution affects the performance of the TV components Modern vehicles use electroignition system ANSWER DOWNLOAD EXAMIANS APP
Physics If objects appear enlarged and inverted in a rear view mirror, then which type of mirror is used? Cylindrical Plane Concave Convex Cylindrical Plane Concave Convex ANSWER DOWNLOAD EXAMIANS APP
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