8 JEE Main 2020 Work Power Energy previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 previous-year questions from the Work Power Energy chapter of Physics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Work Power Energy chapter hub.
In a reactor, 2   kg of U 235 92 fuel is fully used up in 30 days. The energy released fission is 200   MeV .…
Hydrogen ion and singly ionized helium atom are accelerated, from rest, through the same potential difference. The rati…
If the potential energy between two molecules is given by U = A r 6 + B r 12 , then at equilibrium, separation between…
A person pushes a box on a rough horizontal plateform surface. He applies a force of 200   N over a distance of 15…
A body of mass 2   kg is driven by an engine delivering a constant power of 1   J   s - 1 . the body sta…
A cricket ball of mass 0 . 15   kg is thrown vertically up by a bowling machine so that it rises to a maximum heig…
Consider a force F → = - x i ^ + y j ^ . The work done by this force in moving a particle from point A 1,0 to B 0…
A particle m = 1 k g slides down a frictionless track A O C starting from rest at a point A (height 2 m ). After reachi…