Physics In a Laser (say neon laser) all the atoms emit the light waves of Same phase All of these Same amplitude Same frequency Same phase All of these Same amplitude Same frequency ANSWER DOWNLOAD EXAMIANS APP
Physics A liquid disturbed by stirring comes to rest due to Centripetal force Viscosity Density Surface tension Centripetal force Viscosity Density Surface tension ANSWER DOWNLOAD EXAMIANS APP
Physics Find the resistance (in mega) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200m. 4000 80 40 2000 4000 80 40 2000 ANSWER DOWNLOAD EXAMIANS APP
Physics A solid needle placed horizontally on the surface of the water floats due to Surface tension of water Water pressure Viscosity of water Capillary action Surface tension of water Water pressure Viscosity of water Capillary action ANSWER DOWNLOAD EXAMIANS APP
Physics Water pipes in hilly areas often burst on a cold frosty night, because The material of which pipes are made contracts due to cold and so breaks Frost makes the pipes rusty, so they break Water in the pipes freezes and on freezing water expands, so pipes break None of these The material of which pipes are made contracts due to cold and so breaks Frost makes the pipes rusty, so they break Water in the pipes freezes and on freezing water expands, so pipes break None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is not a property of electromagnetic waves? Electromagnetic waves do not show interference and diffraction. Electromagnetic waves are transverse waves Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves do not require a medium to propagate. Electromagnetic waves do not show interference and diffraction. Electromagnetic waves are transverse waves Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves do not require a medium to propagate. ANSWER DOWNLOAD EXAMIANS APP
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