ch33-p024 - 24. (a) We note that the cross section area of...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
24. (a) We note that the cross section area of the beam is π d 2 /4, where d is the diameter of the spot ( d = 2.00 λ ). The beam intensity is I P d == × × π π 2 3 9 2 92 4 500 10 2 00 633 10 4 397 10 / . ./ .. W m W/m b gc h (b) The radiation pressure is p I c r × × = 2 998 10 132 8 . . . m/s Pa. (c) In computing the corresponding force, we can use the power and intensity to eliminate the area (mentioned in part (a)). We obtain
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.
Ask a homework question - tutors are online