Physics A copper disc has a hole. If the disc is heated, the size of the hole First increases and than decreases Increases No change Decreases First increases and than decreases Increases No change Decreases ANSWER DOWNLOAD EXAMIANS APP
Physics Which phenomena shows the particle nature of light? Polarisation Diffraction Interference Photoelectric effect Polarisation Diffraction Interference Photoelectric effect ANSWER DOWNLOAD EXAMIANS APP
Physics The work done by the string of a simple pendulum during one complete oscillation is equal to Total energy of the pendulum Zero Kinetic energy of the pendulum Potential energy of the pendulum Total energy of the pendulum Zero Kinetic energy of the pendulum Potential energy of the pendulum ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a stone up a sloping road than to lift it vertical upwards because Work done in both is same but the rate of doing work is less in rolling. Work done in rolling a stone is less than in lifting it. Work done in rolling is more than in lifting. Work done in lifting the stone is equal to rolling it. Work done in both is same but the rate of doing work is less in rolling. Work done in rolling a stone is less than in lifting it. Work done in rolling is more than in lifting. Work done in lifting the stone is equal to rolling it. ANSWER DOWNLOAD EXAMIANS APP
Physics An egg sinks in soft water but floats in a concentrated solution of salt because The density of salt solution exceeds the density of eggs Egg absorbs salt from the solution and expands Albumin dissolves in salt solution and egg becomes lighter Water has high surface tension The density of salt solution exceeds the density of eggs Egg absorbs salt from the solution and expands Albumin dissolves in salt solution and egg becomes lighter Water has high surface tension ANSWER DOWNLOAD EXAMIANS APP
Physics Who measured the velocity of light first ? Newton Galileo Einstein Romer Newton Galileo Einstein Romer ANSWER DOWNLOAD EXAMIANS APP
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