Physics A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will Decrease Remain unaffected Have its shape changed Increase Decrease Remain unaffected Have its shape changed Increase ANSWER DOWNLOAD EXAMIANS APP
Physics The electric current in a metal wire is due to the flow of - Protons Ions Holes Electrons Protons Ions Holes Electrons ANSWER DOWNLOAD EXAMIANS APP
Physics Out of the following, which is not emitted by radioactive substance? Electromagnetic radiations Alpha particles Neutrons Electrons Electromagnetic radiations Alpha particles Neutrons Electrons ANSWER DOWNLOAD EXAMIANS APP
Physics A man stands on the pan of a balance holding a fish in his right hand and bucket of water in his left hand. If he transfers the fish into the bucket, the total weight on the pan Decreases First increases and then decreases Remains the same Increases Decreases First increases and then decreases Remains the same Increases ANSWER DOWNLOAD EXAMIANS APP
Physics When a person sitting on a swing stands up on the swing, the frequency of oscillation Becomes infinite Increases Decreases Does not change Becomes infinite Increases Decreases Does not change ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following phenomenon helps to conclude that light is a transverse wave? Diffraction Interference Refraction Polarisation Diffraction Interference Refraction Polarisation ANSWER DOWNLOAD EXAMIANS APP
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