Physics A light year is a measure of : Velocity Speed Time Distance Velocity Speed Time Distance ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not true about X-rays? Have low penetrating power Travel with the speed of light Can affect photographic plates Can be reflected or refracted Have low penetrating power Travel with the speed of light Can affect photographic plates Can be reflected or refracted ANSWER DOWNLOAD EXAMIANS APP
Physics A periscope works on the principle of Diffraction Refraction Reflection Total internal reflection Diffraction Refraction Reflection Total internal reflection ANSWER DOWNLOAD EXAMIANS APP
Physics A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will Have its shape changed Remain unaffected Decrease Increase Have its shape changed Remain unaffected Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Physics Solids have definite shapes.This is because The forces of cohesion are very large The forces of adhesion are large The forces of cohesion of the molecules within are very much less in them The forces of adhesion are less The forces of cohesion are very large The forces of adhesion are large The forces of cohesion of the molecules within are very much less in them The forces of adhesion are less ANSWER DOWNLOAD EXAMIANS APP
Physics For an object, the state of rest is considered to be the state of ________ speed. Zero Increasing Inverse Decrease Zero Increasing Inverse Decrease ANSWER DOWNLOAD EXAMIANS APP