A helium-neon laser emits red light having a wavelength of 6.4 *10 ^- ⁷ m and a power of 0.5 mW.How many photons are emitted each second? A)6.4 * 10³⁸ B)1.6 * 10²¹ C)3.2 * 10²⁵ D)2.6 * 10¹⁸ E)1.6 *10¹⁵

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The Answer of A helium-neon laser emits red light having a wavelength of 6.4 *10 ^- ⁷ m and a power of 0.5 mW.How many photons are emitted each second? A)6.4 * 10³⁸ B)1.6 * 10²¹ C)3.2 * 10²⁵ D)2.6 * 10¹⁸ E)1.6 *10¹⁵

A Helium-Neon Laser Emits Red Light Having a Wavelength of 6.4