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ianshinbro

  • 2 years ago

A helium–neon laser emits a beam of circular cross section with a radius r and a power P.? (a) Find the maximum electric field in the beam. (Use any variable or symbol stated above along with the following as necessary: μ0 and c. (b) What total energy is contained in a length of the beam? (Use the following as necessary: P,l , and c.)(c) Find the momentum carried by a length of the beam. (Use the following as necessary: P, l, and c.)

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