Physics Stars appear twinkling because of ......... of light. Reflection Scattering Emission Absorption Reflection Scattering Emission Absorption ANSWER DOWNLOAD EXAMIANS APP
Physics Man perceives sound vibrations in the frequency ranges of 0 – 5 Hz 6 – 10 Hz 11 – 20 Hz 20 – 20000 Hz 0 – 5 Hz 6 – 10 Hz 11 – 20 Hz 20 – 20000 Hz ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15oC, because plastics have a higher thermal conductivity than metals metals have higher thermal capacity than plastics metals are good conductor of heat plastics have a lower density than metals plastics have a higher thermal conductivity than metals metals have higher thermal capacity than plastics metals are good conductor of heat plastics have a lower density than metals ANSWER DOWNLOAD EXAMIANS APP
Physics Rain drops fall from great height. Which among the following statements is true regarding it? Their velocity increases and they fall with different velocity on the earth They fall with that ultimate velocity, which are different for different droplets Their velocity increases and they fall with same velocity on the earth They fall with same ultimate velocity Their velocity increases and they fall with different velocity on the earth They fall with that ultimate velocity, which are different for different droplets Their velocity increases and they fall with same velocity on the earth They fall with same ultimate velocity ANSWER DOWNLOAD EXAMIANS APP
Physics The energy of a photon, whose momentum is 10 MeV/c, where c is the speed of light, is given by 0.1 MeV 100 MeV 10 MeV 1 MeV 0.1 MeV 100 MeV 10 MeV 1 MeV ANSWER DOWNLOAD EXAMIANS APP
Physics A piece of ice is floating in water kept in a beaker. When all the ice melts the level of water will Fall Remain the same Rise First rise and then fall Fall Remain the same Rise First rise and then fall ANSWER DOWNLOAD EXAMIANS APP
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