The substance which conducts current in the solid state is Graphite Diamond Iodine Sodium chloride TRUE ANSWER : ? YOUR ANSWER : ?
Which among the following is false about displacement? It is always positive Displacement is never greater than Distance It can be positive, negative or zero Its SI unit is meter TRUE ANSWER : ? YOUR ANSWER : ?
The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because The bell jar is too small The glass of the bell jar absorbs the sound waves There is no air or any other gas in the bell jar The ringing is not loud enough TRUE ANSWER : ? YOUR ANSWER : ?
If the velocity of a body is halved its kinetic energy ________ Becomes 1/4 th Becomes half Become 4 times Is also doubled TRUE ANSWER : ? YOUR ANSWER : ?
Pieces of camphor placed on water move about rapidly. This is because of Surface tension Capillarity Diffusion Viscosity TRUE ANSWER : ? YOUR ANSWER : ?
When white light passes through a glass prism we get a spectrum on the other side of the prism. In the emergent beam the ray which is deviated least is The red ray The blue ray The green ray The violet ray TRUE ANSWER : ? YOUR ANSWER : ?
Vehicle tyres are inflated properly To avoid skidding and to minimise friction To ensure smooth running. To go fast and save fuel. To allow the vehicle to take more load. TRUE ANSWER : ? YOUR ANSWER : ?
The weakest of all fundamental forces is Gravitational force Electrostatic force Magnetic force Nuclear force TRUE ANSWER : ? YOUR ANSWER : ?
A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of ________ . Illusion of the man The centripetal force Gravitational force between train and man Pressure difference due to fast moving air in between TRUE ANSWER : ? YOUR ANSWER : ?
Thermal expansion of materials arises from Asymmetry of potential energy curve Weak bonds Thermal vibrations Strong bonds TRUE ANSWER : ? YOUR ANSWER : ?