In 1.0 s, a 60 W bulb emits 11 J of energy in the form of infrared radiation (heat) Of wavelength 1850 nm. How many photons of infrared radiation does the lamp generate in 1.0 s? A) 1.0 * 10²⁹ B) 1.0 * 10²⁰ C) 6.8 * 10 ^-14 D) 1.1 * 10^-19 E) 6.6 * 10²³

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Quizplus · Accepted Answer

To find the number of photons emitted, we first calculate the energy of a single photon using the equation $E = \frac{hc}{\lambda}$, where $h$ is Planck's constant ($6.626 \times 10^{-34} \, \text{Js}$), $c$ is the speed of light ($3.00 \times 10^8 \, \text{m/s}$), and $\lambda$ is the wavelength of the infrared radiation ($1850 \, \text{nm} = 1850 \times 10^{-9} \, \text{m}$). Then, we divide the total energy emitted by the energy of a single photon to find the number of photons.Given that the bulb emits 11 J of energy in the form of infrared radiation, and using the values for $h$, $c$, and $\lambda$, we find the energy of a single photon and then calculate the total number of photons emitted in 1.0 s. The correct answer must account for these calculations accurately, leading to the conclusion that choice B is correct, indicating a scientific notation that corresponds to the calculated number of photons.

In 10 S, a 60 W Bulb Emits 11 J of of Energy