Question

Please Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11

Answer 1

a)The correct answer is option X

b)The correct answer is option Z

Step-by-step explanation:

For question 3 -

When the 2 waves interfere , they add up at all the points

Since the 2 waves have 0 phase difference (as seen from the diagram) , the resultant wave also has 0 phase difference.

The amplitude of 2 waves will simply add up -

`A_(1) = 1`

`A_(2) = 0.5`

∴
`A_(net) = A_(1) + A_(2)` = 1.5

The resultant wave should also have 0 displacement at origin.

∴The correct answer is option X

For question 35 -

The 2 waves are out of phase by 180°

∴ The amplitude of two waves would simply get subtracted -

`A_(1) = 1`

`A_(2) = 1`

∴
`A_(net) = A_(1) - A_(2)` = 0

Since the amplitude is 0 the displacement of wave would be 0 at every point.

∴ The correct answer is option Z