Zero point energy

For A c_p is 100 units for B c_p is 50 units

• B will cool down fast

• A will cool down fast

• A will hold more energy

• B will hold more energy

velocity of light is constant. true or false

• true

• false

Which substance is the better conductor?

• steel
• gold
• wood
• aluminum 

The frequency of a body moving with simple harmonic motion is doubled. If the amplitude remains the same, which one of the following is also doubled?

• the time period

• the total energy

• the maximum velocity

• the maximum acceleration

3. How many phases and components are present in the following systems?

• a) 2,2

• b) 2,1

• c) 1, 1

• c) 1,2

The value of acceleration due to gravity at the equator will____ when the Earth stops rotating

• Increase

• Decrease

• Become zero

• Remain same

A pair of trapeze performers at the circus is swinging from ropes attached to a large elevated platform. Suppose that the performers can be treated as a simple pendulum with a length of 16 m. Determine the period for one complete back and forth cycle.

• 2 sec
• 12 sec
• 8 sec
• 10 sec

For open system we deals with

• Lagrangian concept

• Eulerial concept

Two small spheres each carrying a charge q are placed r metre apart. If one of the spheres is taken around the other one in a circular path of radius r, the work done will be equal to?

• force between them × r

• force between them × 2πr

• force between them/2πr

• zero

What type of energy is stored in the spring of a watch?

• Heat energy

• Chemical energy

• Kinetic energy

• Potential energy