What is the application for reflection of waves?
1 answer:
You might be interested in
Answer:
E = 1.04*10⁻¹ N/C
Explanation:
Assuming no other forces acting on the proton than the electric field, as this is uniform, we can calculate the acceleration of the proton, with the following kinematic equation:
As the proton is coming at rest after travelling 0.200 m to the right, vf = 0, and x = 0.200 m.
Replacing this values in the equation above, we can solve for a, as follows:
According to Newton´s 2nd Law, and applying the definition of an electric field, we can say the following:
F = mp*a = q*E
For a proton, we have the following values:
mp = 1.67*10⁻²⁷ kg
q = e = 1.6*10⁻¹⁹ C
So, we can solve for E (in magnitude) , as follows:
⇒ E = 1.04*10⁻¹ N/C
Answer:
A. the frequency decreases.
Explanation:
The wavelength of electromagnetic radiation depends on the speed of radiation and the frequency of the radiation.
The speed of the radiation is equal to the speed of light and is given as the product of its frequency and wavelength.
If is the speed of electromagnetic radiation,
is its frequency, and
is its wavelength, then:
Therefore, wavelength is inversely proportional to its frequency.
Hence, as wavelength increases, the frequency decreases.