A helium-neon laser emits red light having a wavelength of 632.8 nm and a power of 10 mW. How many photons are emitted each second? (h = 6.63 *10^-³⁴ J.s, c = 3.00 * 10⁸m/s, and 1 nm = 10^-⁹m) A) 4.8 * 10¹⁷ B) 1.6 *10¹⁵ C) 3.2 * 10¹⁶ D) 2.6 *10¹⁸

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The Answer of A helium-neon laser emits red light having a wavelength of 632.8 nm and a power of 10 mW. How many photons are emitted each second? (h = 6.63 *10^-³⁴ J.s, c = 3.00 * 10⁸m/s, and 1 nm = 10^-⁹m) A) 4.8 * 10¹⁷ B) 1.6 *10¹⁵ C) 3.2 * 10¹⁶ D) 2.6 *10¹⁸

A Helium-Neon Laser Emits Red Light Having a Wavelength of 632.8