Physics A person does some work of 1,000 J in 2 s. His power will be ________ 500W 1000W 50W 25W 500W 1000W 50W 25W ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following supports particle nature of photons ? Interference Polarization Diffraction Photoelectric effect Interference Polarization Diffraction Photoelectric effect ANSWER DOWNLOAD EXAMIANS APP
Physics How much calorie of energy is released by a boiled egg ? 40 77 50 60 40 77 50 60 ANSWER DOWNLOAD EXAMIANS APP
Physics What is the reason for twinkling of stars ? Atmospheric refraction Dispersion of light Atmospheric reflection Total internal reflection Atmospheric refraction Dispersion of light Atmospheric reflection Total internal reflection ANSWER DOWNLOAD EXAMIANS APP
Physics A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because The carpet is a better conductor of heat than the stone The floor and carpet are at different temperatures The stone conveys the heat away from the feet more rapidly than the carpet The human body maintains a constant temperature The carpet is a better conductor of heat than the stone The floor and carpet are at different temperatures The stone conveys the heat away from the feet more rapidly than the carpet The human body maintains a constant temperature ANSWER DOWNLOAD EXAMIANS APP
Physics Why does'nt the hydrogen atom emit X-rays? It is very small in size It has only one electron Its energy levels are very close to each other It is highly electropositive It is very small in size It has only one electron Its energy levels are very close to each other It is highly electropositive ANSWER DOWNLOAD EXAMIANS APP
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