An energy inefficient incandescent light bulb uses a hot filament to produce a continuous spectrum. The temperature of the filament is typically about 2853 k. At what wavelength…

Question

asked Jan 6, 2020 216k views

2 Answers

Atif Imran · Answer 1 · 2020-01-11T22:31:32+0000

Answer:

So the wavelength of light is 1015.7 nm

Step-by-step explanation:

From Wein's displacement law, we can write the following formula;

$\lambda _(MAX)* T=K$ here,
$\lambda _(MAX)$ is the wavelength of maximum radiation in meters

T is the absolute temperature (in Kelvin) for maximum radiation

K is the constant has a value of
2.898* 10^(-3)m-kelvin

Given here, T = 2853 K

And we need to find
$\lambda _(MAX)$

Putting the values in formula

$\lambda _(max)* 2853=2.898* 10^(-3)$

$\lambda _(max)=1.0157* 10^(-6)m$

$\lambda _(max)=1015.7* 10^(-9)m=1015.7nm$