Which of the following is/are necessary for the production of interference with two wave trains? I. The sources must be close to each other. II The waves must have the same frequency. III. The waves must have the same amplitude. IV. The waves must travel with the speed of light.
I, II and IV only
I, II and III only
I and II only
II, III and IV only
l, III and IV only
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Discussions (4)
The correct answer is A. This is because for interference to occur, the waves must be of the same frequency and amplitude. These waves must also be close to each other for interference to occur.
the bloody ans is wrong mate. i t should be C innit! try to adhere champ.
waves are only of the same amplitude if they interfere destructively. this makes sense innit? constuevtive waves on the other hans have diffeeent amplitudes, this is the main reason they reinforce each other
Pls i dnt fink dats coret? I fink d rite ansa is 'a' if u defin interfrence u wil fynd out dat d wave travelin ar of d same frequency, amplitud and wavelength
