A He-Ne laser is made up of a cylindrical beam of light with a diameter of 0.750 cm. The energy is pulsed, lasting for 1.40 ns, and each burst…

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A He-Ne laser is made up of a cylindrical beam of light with a diameter of 0.750 cm. The energy is pulsed, lasting for 1.40 ns, and each burst contains an energy of 3.00 J.

(b) What is the average energy per unit volume for each pulse? in J/m^3

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