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  • Momentum and Newton's Laws
  • A fully reflecting solar sail feels ___ the radiation pre...
Multiple choice

A fully reflecting solar sail feels ___ the radiation pressure of a fully absorbing sail.

  1. double

  2. half

  3. quadruple

  4. quarter

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A fully reflecting sail experiences twice the radiation pressure of a fully absorbing sail because the photon momentum change is double (p to -p instead of p to 0).

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