Physics The device used to change the speed of an electric fan is Rectifier Amplifier Switch Regulator Rectifier Amplifier Switch Regulator ANSWER DOWNLOAD EXAMIANS APP
Physics Light travels in a straight line (rectilinear propagation of light). This statement does hold if the medium of travel for light is Inhomogeneous and transparent Made up of slabs of different refractive indices Homogeneous and transparent Of variable refractive index Inhomogeneous and transparent Made up of slabs of different refractive indices Homogeneous and transparent Of variable refractive index ANSWER DOWNLOAD EXAMIANS APP
Physics The threshold frequency is the frequency below which : Photo electric emission is not possible Photo current decreases with voltage Photo current increases with voltage Photo current is constant Photo electric emission is not possible Photo current decreases with voltage Photo current increases with voltage Photo current is constant ANSWER DOWNLOAD EXAMIANS APP
Physics Among the following materials sound travels fastest in Steel Vacuum Water Air Steel Vacuum Water Air ANSWER DOWNLOAD EXAMIANS APP
Physics If we want to calculate the pressure of a liquid at the bottom of a vessel, the quantity which is not required to determine it, is Surface area of the bottom of the vessel Density of the liquid Acceleration due to gravity at the bottom of the vessel Height of the liquid column Surface area of the bottom of the vessel Density of the liquid Acceleration due to gravity at the bottom of the vessel Height of the liquid column ANSWER DOWNLOAD EXAMIANS APP
Physics In Astrophysics, what name is given to a hypothetical hole in outer space from which stars and energy emerge? Black hole Ozone hole Asteroid belt White hole Black hole Ozone hole Asteroid belt White hole ANSWER DOWNLOAD EXAMIANS APP
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