A Laser Beam Has a Wavelength of 633 Nm and a Power

question 35

Essay

A laser beam has a wavelength of 633 nm and a power of 0.500 mW spread uniformly over a circle 1.20 mm in diameter.This beam falls perpendicularly on a perfectly reflecting piece of paper having twice the diameter of the laser beam and a mass of 1.50 mg.(c = 3.00 × 10⁸ m/s,μ₀ = 4π × 10^-7 T ∙ m/A,ε₀ = 8.85 × 10^-12 C²/N ∙ m²)
(a)What are the amplitudes of the electric and magnetic fields in this laser beam?
(b)What acceleration does the laser beam give to the paper?

---

Definitions:

Placebo

An inert or non-active treatment given to a participant in an experiment, used to measure the effect of the treatment being tested.

Barbiturates

A class of drugs that act as central nervous system depressants, often used for their sedative and hypnotic properties.

Deadly Effects

Refers to the harmful outcomes or mortal impacts that can result from certain actions, substances, or situations.

Barbiturates

A class of drugs that are used as sedatives and hypnotics, which can depress the central nervous system.