Let E1 and E2 be two ellipse whose centres are at the origin. The major axes of E1 and E2 lie along x-axis and y-axis respectively. Let S be the circle x2+(y−1)2=2 the straight line x+y=3 touches the curves S, E1 and E2 at P, q and R, respectively.
Suppose that PQ=PR=2√3. If e1 and e2 are the eccentricities of E1 and E2 respectively, then the correct expression(s) is/are
The figure below shows stages in a nuclear fission reaction. The energies of these states are E1,E2 and E3 respectively. Which option is correct?
A body is executing simple harmonic motion. At a displacement x, its potential energy is E1 and at a displacement y, its potential energy is E2. The potential energy E at a displacement (x + y) is