Physics Infrasonic sound has a frequency lower than 32 Hz 5 Hz 20 Hz 15 Hz 32 Hz 5 Hz 20 Hz 15 Hz ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to carry two buckets of water in one hand each, than to carry only one in one hand because Centre of gravity and centre of equilibrium fall within the feet Resultant weight of buckets is zero Centre of gravity falls within the body Weights of buckets are balanced Centre of gravity and centre of equilibrium fall within the feet Resultant weight of buckets is zero Centre of gravity falls within the body Weights of buckets are balanced ANSWER DOWNLOAD EXAMIANS APP
Physics A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct? The wavelength of X-ray photon is less than the wavelength of visible radiation photon. Both the photons have different energies. The speeds of both the photons in vacuum are different The frequency of X-ray photon is higher than the frequency of visible radiation photon. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. Both the photons have different energies. The speeds of both the photons in vacuum are different The frequency of X-ray photon is higher than the frequency of visible radiation photon. ANSWER DOWNLOAD EXAMIANS APP
Physics Which colour of light shows maximum deviation when passed through a prism ? Red White Violet Green Red White Violet Green 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 10 MeV 1 MeV 0.1 MeV 100 MeV 10 MeV 1 MeV 0.1 MeV 100 MeV ANSWER DOWNLOAD EXAMIANS APP
Physics The device used to change the speed of an electric fan is Amplifier Regulator Switch Rectifier Amplifier Regulator Switch Rectifier ANSWER DOWNLOAD EXAMIANS APP
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