Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly Prevent cold waves from the sky descending on earth Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Reflect back the heat given by earth Prevent cold waves from the sky descending on earth Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Reflect back the heat given by earth ANSWER DOWNLOAD EXAMIANS APP
Physics What part of the atom has a positive charge? All listed here Proton Neutron Electron All listed here Proton Neutron Electron ANSWER DOWNLOAD EXAMIANS APP
Physics The dimensional formula ML–1T–2 corresponds to Modulus of elasticity Moment of a force Viscosity Thrust Modulus of elasticity Moment of a force Viscosity Thrust ANSWER DOWNLOAD EXAMIANS APP
Physics If the phase difference between two points is 120° for a wave with velocity of 360 m/s and frequency 500 Hz, then path difference between the two points is 1 cm 12 cm 6 cm 24 cm 1 cm 12 cm 6 cm 24 cm ANSWER DOWNLOAD EXAMIANS APP
Physics Which one among the following is not an electromagnetic wave? X-Ray Cathode Ray R-Ray Infrared Ray X-Ray Cathode Ray R-Ray Infrared Ray ANSWER DOWNLOAD EXAMIANS APP
Physics Heat energy is transferred by conduction whenever molecules Particles replaces there places Means of photons All of these Collide each other Particles replaces there places Means of photons All of these Collide each other ANSWER DOWNLOAD EXAMIANS APP
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