Advertisements
Advertisements
प्रश्न
What is nuclear energy?
Advertisements
उत्तर
When a heavy nucleus is bombarded with slow neutrons, it splits into two nearly equal light nuclei with a release of tremendous amount of energy. In this process of nuclear fission, the total sum of masses of products is less than the total sum of masses of reactants. This lost mass gets converted into energy. The energy so released is called nuclear energy.
संबंधित प्रश्न
What is solar energy?
State two advantages of using nuclear energy for producing electricity.
A metal ball of mass 2kg is allowed to fall freely from rest from a height of 5m above the ground.
What the kinetic energy of the ball just before it hits the ground ?
Give three examples of bodies possessing kinetic energy.
State two advantages and disadvantages of using wind energy for producing electricity.
State the energy changes which take place when:
During electrolysis.
Give one example when:
Mechanical energy to heat energy.
A boy sits and stands repeatedly. Draw a graph showing the variation of potential energy with time.
What is the form of that graph between
(i) K.E. and velocity for a constant mass?
(ii) K.E. and mass for a constant velocity?
