Physics Sun's heat reaches us by Radiation Conduction Convection Reflection Radiation Conduction Convection Reflection 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. 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. Both the photons have different energies. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. 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. Both the photons have different energies. ANSWER DOWNLOAD EXAMIANS APP
Physics In spherical polar coordinates (l, q, a), q denotes the polar angle around z-axis and a denotes the azimuthal angle raised from x-axis . Then the y-component of P is given by Pcosq sina Psinq sina Psinq cosa Pcosq cosa Pcosq sina Psinq sina Psinq cosa Pcosq cosa ANSWER DOWNLOAD EXAMIANS APP
Physics If velocity is constant then acceleration is what? Increasing Zero Infinite Constant Increasing Zero Infinite Constant ANSWER DOWNLOAD EXAMIANS APP
Physics Why does ice covered in sawdust not melt quickly ? The water is absorbed by sawdust Sawdust does not allow the air to touch the ice Sawdust is a bad conductor of heat Sawdust is good conductor of heat The water is absorbed by sawdust Sawdust does not allow the air to touch the ice Sawdust is a bad conductor of heat Sawdust is good conductor of heat ANSWER DOWNLOAD EXAMIANS APP
Physics A NOT gate can be implemented by: Two diodes A single diode A single transistor A single resistor Two diodes A single diode A single transistor A single resistor ANSWER DOWNLOAD EXAMIANS APP
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