In interference and diffraction, energy is redistributed: some regions become darker and others brighter. Consider: A. This is consistent with conservation of energy because no energy is created or lost. B. Interference and diffraction are exhibited only by light waves. Which combination is correct?
Options

Question

In interference and diffraction, energy is redistributed: some regions become darker and others brighter. Consider: A. This is consistent with conservation of energy because no energy is created or lost. B. Interference and diffraction are exhibited only by light waves. Which combination is correct?

Options

G1 Physics · Accepted Answer

Step 1: Interference adds wave amplitudes, so the energy distribution across space changes, although energy is conserved. Thus A is true. Step 2: Sound, water and matter waves can also display diffraction and interference. These are general wave phenomena, not exclusive to light. Thus B is false. Final answer: A true, B false (Option B).