Question

Optical Tweezers, visualize and calculate the force on a suspended glass bead.

Red laser beam is pointed vertically, its EM wave goes vertically. The speed of light is c = 3E8 m/s.
Physlet Physics by Christian and Belloni: Illustration 32.4 (compadre.org) Open, and run.
This depicts a vertical red laser beam, an EM wave moving at the speed of light, whose wavelength
λ = 635 nm. The perpendicular E and B fields are colored, red for "E", and blue for "B". This is a
1000 mW (1 Watt intensity) laser. Use c = λ f, to calculate the frequency of the wave

Answer 1

To calculate the frequency of a red laser with a wavelength of 635 nm, we use the formula c = fλ, where c is the speed of light (3 x 10^8 m/s). Solving for frequency, we find that f = 4.724 x 10^14 Hz. the frequency of the electromagnetic wave emitted by the red laser is approximately 4.724 x 1014 Hz.

Step-by-step explanation:

To calculate the frequency of the electromagnetic wave from a red laser with a given wavelength, we can use the equation c = fλ, where c is the speed of light in vacuum, f is the frequency, and λ is the wavelength.

Given the wavelength λ is 635 nm (which is equal to 635 x 10-9 m) and the speed of light c is 3 x 108 m/s, we can rearrange the equation to solve for f:

f = c / λ

By substituting the given values:

f = (3 x 108 m/s) / (635 x 10-9 m)

f ≈ 4.724 x 1014 Hz

Therefore, the frequency of the electromagnetic wave emitted by the red laser is approximately 4.724 x 1014 Hz.