Lesson: Radiation Pressure
In this lesson, we will learn how to calculate the pressure due to incident radiation of a given intensity that is experienced by an object.
Sample Question Videos
Worksheet: 6 Questions • 2 Videos
A microscopic spherical dust particle of radius 2.000 μm and mass 10.0 µg is moving in outer space at a constant speed of 30.0 cm/s. A wave of light strikes the particle from the opposite direction to the direction of the particle’s motion and this light is absorbed. The particle decelerates uniformly to rest in a time of 1.00 s. What was the average electric field amplitude of the absorbed light?
What is the radiation intensity of the beam?
What is the maximum electric force that the beam can exert on a 2.00-nC electric charge?
What is the maximum magnetic force that the beam can exert on a 2.00-nC charge that has a speed of 400 m/s?
A 150 W light bulb emits radiation with a power of 6.2 W uniformly in all directions. What pressure does the emitted radiation exert on a mirror at a distance of 1.0 m from the bulb?