Advertisements
Advertisements
प्रश्न
Define the following:
Law of conservation of energy
Advertisements
उत्तर
The law of conservation of energy states that energy can neither be created nor destroyed. It may be transformed from one form to another but the total energy of an isolated system remains constant.
APPEARS IN
संबंधित प्रश्न
What is the significance of energy? Differentiate between commercial and non-commercial sources of energy.
How has the consumption pattern of energy changed over the years?
A uniform force of `(2hati + hatj)` N acts on a particle of mass 1 kg. The particle displaces from position `(3hatj + hatk)` m to `(5hati + 3hatj)` m. The work done by the force on the particle is ______
A body of mass 1 kg is thrown upwards with a velocity of 20 ms−1. It momentarily comes to rest after attaining a height of 18 m. How much energy is lost due to air friction?.
An engine pumps water continuously through a hose. Water leaves the hose with a velocity v and m is the mass per unit length of the water of the jet. What is the rate at which kinetic energy is imparted to water?.
If the potential energy of the particle is `α - β/2x^2`, then the force experienced by the particle is ______
A particle that is constrained to move along the x-axis, is subjected to a force in the same direction which varies with the distance x of the particle from the origin as F(x) = -kx + ax3. Here, k and a are positive constants. For x ≥ 0, the functional form of the potential energy U(x) of the particle is ______
Which of the following statements is true for commercial sources of energy?
Which of the following has the largest source of power in India?
Compact fluorescent lamp (CFL) consumes ______ percent less power than ordinary bulb?
