9ET IIT Phy VVN - 03

The relation between mass and its equivalent energy is given by

• E = m/c²

• E/m = C²

• Ec² = m

• m/E = c²

Unit of electrical energy is ?

• kWh^-1

• kWh

• kW

• JOULES

Energy possessed by a body by a virtue of its position is called as ?

• Kinetic energy

• Potential energy

• Gravity

• Electro static force

Momentum of gun is __________ than momentum of bullet

• Equal

• greater

• Less

• Depends on the situation, may be greater or less

Work done by conservative force is stored as _______?

• Electrostatic Force

• Magnetic Energy

• Kinetic Energy

• Potential Energy

Examples of Non-Conservative forces are?

• Gravity, Electrostatic forces

• Electromagnetic forces

• Friction, Drag, Buoyant forces

• None

Which type of work is path dependent ?

• Non-Conservative

• Conservative

• Both

• None

"When displaced from its position the centre of gravity goes up". Name the equilibrium ?

• Neutral

• Unstable

• Stable

• None

In which of the following the net force is zero ?

• Stable equilibrium

• Unstable equilibrium

• Neutral equlibrium

• All of these

Potential energy maximum and minimum at _______ & __________ equilibrium s respectively

• stable and unstable

• neutral and stable

• neutral and unstable

• unstable and stable