Which wave property changes when two waves interfere in the same medium?
a) amplitude

b) frequency

c) wavelength

d) velocity

Answer : (A) amplitude

Explanation :

When two waves interfere in the same medium, then the amplitude of the resultant wave changes.

There are two conditions for interference :

(1) Constructive interference occurs when two waves are moving in the same direction. As a result, the amplitude gets larger.

(2) Destructive interference occurs when two waves are moving in opposite direction. As a result, both waves cancel out each other.

Hence, the correct option is (A).

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach

365.25 earth days are in the year of a light year