Physics A rubber ball is dropped from a height of 2 metres. To what height will it rise if there is no loss of energy/velocity after rebounding ? 2 metres 4 metres 1 metre 3 metres 2 metres 4 metres 1 metre 3 metres ANSWER DOWNLOAD EXAMIANS APP
Physics Optical fibres are based on the phenomenon of Diffraction Total Internal Reflection Interference Dispersion Diffraction Total Internal Reflection Interference Dispersion ANSWER DOWNLOAD EXAMIANS APP
Physics A periscope works on the principle of Refraction Total internal reflection Diffraction Reflection Refraction Total internal reflection Diffraction Reflection ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these waves can be polarized ? Light waves Sound waves in air Longitudinal waves on a string Transverse waves on a string Light waves Sound waves in air Longitudinal waves on a string Transverse waves on a string ANSWER DOWNLOAD EXAMIANS APP
Physics Ventilators are provided near the ceiling of the room because The exhaled warmer air rises up and goes out These do not look nice in the lower part These provide cross ventilation in the room These provide some sunlight in the room The exhaled warmer air rises up and goes out These do not look nice in the lower part These provide cross ventilation in the room These provide some sunlight in the room ANSWER DOWNLOAD EXAMIANS APP
Physics In which form is the supplied heat energy stored during change in temperature of substance? Heat energy Kinetic energy Both kinetic and potential energy Potential energy Heat energy Kinetic energy Both kinetic and potential energy Potential energy ANSWER DOWNLOAD EXAMIANS APP
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