He required condition for the Constructive inference path difference should be: (308)
A. Odd integral multiple of λ B. Integral multiple of λ
C. Odd integral multiple of
2
l D. integral multiple of
2
l

11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

In what direction does the medium move relative to the direction of the wave? explain.

A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?