The maximum intensity at bright fringe is 4 times that of either wave. Does this violate energy conservation? If not, why?

Does Lenz's law violate the law of conservation of energy?

In a Young's double-slit expriment using identical slits, the intensity at a bright fringe is I_(0). If one of the slits is now covered, the intensity at any point on the screen will be

In an experiment on photoelectric effect, a photon is incident on an electron from one direction and the photoelectron is emitted almost in the opposite direction. Does this violate conservation of momentum ?

The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy ? Why ?

When interference is produced by two progressive waves of equal frequencies, then the maximum intensity of the resulting sound are N times the intensity of each of the component waves. The value of N is

In Young's double slit interference experiment, using two coherent waves of different amplitudes, the intensities ratio between bright and dark fringes is 3 Then, the value of the wave amplitudes ratio that arrive there is

The maximum intensity of fringes in Young's experiment is I. If one of the slit is closed, then the intensity at that place becomes I_o . Which of the following relation is true?

The maximum intensity of fringes in Young's experiment is I. If one of the slit is closed, then the intensity at that place becomes I_o . Which of the following relation is true?

The intensity of light emerging from one slit is nine times than that from the other slit in Young's double sit interference set up. The ratio of maximum intensity to minimum intensity in the fringe pattern is

The line-width of a bright fringe is sometimes defined as the separation between the points on the two sides of the central line where the intensity falls to half the maximum. Find the line-width of a bright fringe in a Young's double slit experiment in terms of lamda , d and D where the symbols have their usual meanings