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 Pcosq cosa Psinq sina Psinq cosa Pcosq sina Pcosq cosa Psinq sina Psinq cosa ANSWER DOWNLOAD EXAMIANS APP
Physics The speed of light in air is 3 × 108 m/s 8 × 103 m/s Infinity 3 × 10–8 m/s 3 × 108 m/s 8 × 103 m/s Infinity 3 × 10–8 m/s ANSWER DOWNLOAD EXAMIANS APP
Physics When the Sun is near the horizon during the morning or evening, it appears reddish. The phenomenon that is responsible for this observation is Scattering of light Reflection of light Refraction of light Dispersion of light Scattering of light Reflection of light Refraction of light Dispersion of light ANSWER DOWNLOAD EXAMIANS APP
Physics For an ideal gas, which one of the following statements does not hold true? There is no interactive force between the molecules. The potential energy of the gas molecules is zero The kinetic energies of all gas molecules are not same The speed of all gas molecules is same There is no interactive force between the molecules. The potential energy of the gas molecules is zero The kinetic energies of all gas molecules are not same The speed of all gas molecules is same ANSWER DOWNLOAD EXAMIANS APP
Physics A ball rolling along the ground gradually slows down and finally comes to rest is due to ________ Electrostatic force Friction Magnetic force Muscular force Electrostatic force Friction Magnetic force Muscular force ANSWER DOWNLOAD EXAMIANS APP
Physics An atom bomb based upon the principal of ________ Controlled chain reaction None of these Nuclear fussion Nuclear fission Controlled chain reaction None of these Nuclear fussion Nuclear fission ANSWER DOWNLOAD EXAMIANS APP
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