Various Forms of Energy and Law of Conservation of Energy

What part of an electric circuit is the source of electrical energy?

Which of the Following can be Used to Express Energy? (The Symbols used have their usual meanings for each unit of Physical Quantities)

1. Wh
2. VC
3. VAs²
4. A²$\Omega$s

A dynamo develops 1A and 8V. The energy which it generates in one second is 

The material used for the constraction of central rod in a nuclear reactor is-

Which is the largest uranium producing country in the world?

In nuclear power station, moderator is used to-

A piston cylinder expends with some pressure, what is the work done by the system?

A piston cylinder is compressed with some pressure, what is the work done on the system?

Which of the following process $\mathrm{P}-\mathrm{V}$ work in highest?

Which of the following is not the type of energy?

When objects of equal mass X, Y,  and Z are thrown from their positions in different horizontal lanes with velocities v, 2v, 2v, all three stand in d alignment

Match the columns
    Column I                                                                                        Column II
(i) The sources of solar energy                                                        $1.$Chemical energy
(ii) Emission of $\gamma$-rays                                                                      $2.$Nuclear fission reaction
(iii) Sodium donates a electron to chlorine 
(iv) Making of heavy metal while the formation of universe         $3.$Nuclear fusion reaction
(iv) Reaction in a nuclear reactor at Bhabha Atomic                     $4.$Radioactivity
      Research Centre, Mumbai
Choose the appropriate match.

The mass defect is the result of what action occurring

100 g of ice at $15$°C was heated. The rise in the temperature of ice was plotted against the heat given to the ice. Which of the following graphs correctly depicts this behavior?

A graph was plotted taking the temperature in °C along the X-axis and the corresponding temperature in Kelvin along the Y-axis. Which of the curves in the given figure most correctly represents this behavior?

A man of weight Mg is moving upwards in a rocket with acceleration 4 g. His apparent weight inside the rocket will be 

In a rocket, fuel is consumed at the rate of m kg per sec. If the speed of the exhaust is v m/s, then what is thrust experienced by the rocket?

Water falling on the blades of a turbine from a height of 40 m. If the speed of the river before the fall is 10 m/s and the area of the blades of the turbine is 2 sq m. Find the power generated every second. 

A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg. What is the work done in pulling the entire chain on the table?

An electric motor of power 1Kw is fitted in the Jacuzzi bathtub. If the efficiency of the motor is 50%. Then calculate the work done on the water by it in 20 minutes.