Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
Give one relevant example for the following transformation of energy :
Electrical energy to light energy.
State the changes in form of energy while producing hydro electricity.
What is tidal? Explain in brief.
What is ocean? Explain in brief.
State two advantages of producing electricity from solar energy.
Explain the principle of generating electricity from hydro energy.
What do you understand by mechanical energy?
Show that in case of a body falling freely under gravity, total mechanical energy remains conserved (neglect air resistance).
Obtain an expression for the kinetic energy of a body of mass m moving with a velocity v?
A ball of mass 50 g falls from a height of 2m and rebounds from the ground to 1.6 m. Find:
(i) The potential energy possessed by the ball when initially at rest.
(ii) The kinetic energy of the ball before it hits the ground.
(iii) The final potential energy of the ball.
(iv) The loss in kinetic energy of the ball on collision. (Take: g = 10N kg−1)
