Physics The basic reason for the extraordinary sparkle of suitably cut diamond is that It is very hard It has a very high refractive index It has well defined cleavage planes It has a very high transparency It is very hard It has a very high refractive index It has well defined cleavage planes It has a very high transparency ANSWER DOWNLOAD EXAMIANS APP
Physics Why the needle of iron swims on water surface when it is kept gently ? Due to its shape It will remain under the water, when it will displace more water than its weight Due to surface tension The density of needle is less than that of water Due to its shape It will remain under the water, when it will displace more water than its weight Due to surface tension The density of needle is less than that of water ANSWER DOWNLOAD EXAMIANS APP
Physics Waves that are required for long distance wireless communication are Radio waves Infrared rays Microwaves Ultraviolet rays Radio waves Infrared rays Microwaves Ultraviolet rays ANSWER DOWNLOAD EXAMIANS APP
Physics Optic fibres are used in : X-ray photos Ultrasound scans CAT scans Endoscopy X-ray photos Ultrasound scans CAT scans Endoscopy ANSWER DOWNLOAD EXAMIANS APP
Physics Ice cubes are added to a glass of pure water and a glass of pure alcohol. The ice would be At a higher level in water Floating in alcohol and sinking in water At a higher level in alcohol At the same level in both At a higher level in water Floating in alcohol and sinking in water At a higher level in alcohol At the same level in both 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 circle A vertical straight line A parabola A horizontal straight line A circle A vertical straight line A parabola A horizontal straight line ANSWER DOWNLOAD EXAMIANS APP
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