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 × 10⁸ m/s,and 1 nm = 10−⁹ m) 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 × 10⁸ m/s,and 1 nm = 10−⁹ m) 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