Question

A laser beam with a frequency of 180 Hz forms an 8 m standing wave with 10 nodes.

How many nodes would be formed by the same beam over the same distance at 600 Hz?
What are the nodes?

Answer 1

Answer:33

Step-by-step explanation:

F = frequency

N = Node count

w = wave lenght

v = wave velocity

L = distance wave traveled

First find wave length of laser

w = (2/(N))*(L)

w = (2/(10))*(8)

w = 1.6

then using (w), find velocity

V = (w)(F)

V = (1.6)*(108)

V = 288

Plug in V and the new frequency to solve for new node count

F = NV/2L

(600) = (N)*(288) / 2 * (8)

(N) = 33.33

there are 33 nodes