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Radiation Pressure

Mediumphysics

Radiation exerts pressure because it carries:

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About This Question

Subject
physics
Chapter
electromagnetic waves
Topic
radiation pressure
Difficulty
Medium
Year
2025
Tags
RadiationPressure

Solution

Correct Answer:

Momentum

EM waves carry both energy () and momentum ().

  • When waves hit a surface, they transfer this momentum.
  • By Newton's second law, the rate of momentum transfer is the Force.
  • Force per unit area is Radiation Pressure. This is useable for 'Solar Sails' in space.

This medium difficulty physics question is from the chapter electromagnetic waves, covering the topic of radiation pressure. It appeared in the 2025 exam.

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