A spherical wave has the form
)
The amplitude of the wave a distance r from the source is

Question

A spherical wave has the form 
)
The amplitude of the wave a distance r from the source is

Quizplus · Accepted Answer

The amplitude of a spherical wave is given by: 
A(r) = A₀/r

where A₀ is the amplitude at the source and r is the distance from the source.

In this case, we are not given A₀, so we can't calculate the amplitude exactly. However, we can eliminate some of the answer choices.

Option A has an amplitude of 0.002 cm, which is much too small for a spherical wave.

Option B has a much larger amplitude than A, which is unlikely for a spherical wave.

Option D also has a very large amplitude, so we can eliminate it as well.

Option E has an extra digit in the hexadecimal code, which seems like a typo.

Option C is the only one left, and it has a reasonable amplitude. Therefore, the answer is C.

A Spherical Wave Has the Form