When the bulb is switched on,what happens to | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The bulb emits thermal radiation. The black-painted surface on the $X$ side is a better absorber of radiation compared to the white/shiny surface

Vedclass · Accepted Answer

Decreases

Vedclass · Answer

(B) The bulb emits thermal radiation. The black-painted surface on the $X$ side is a better absorber of radiation compared to the white/shiny surface on the $Y$ side.As the black surface absorbs more heat,the air inside the $X$ bulb expands more due to the increase in temperature.This increased pressure pushes the alcohol level down on the $X$ side and up on the $Y$ side.Therefore,the level of alcohol on the $X$ side decreases.

When the bulb is switched on,what happens to the level of alcohol on the $X$ side?

Similar Questions

Define thermal radiation and radiant energy and explain Prevost's theory of heat exchange.

Thermal radiation travels at the speed of . . . . . . .

$A$ spherical body of emissivity $e = 0.6$ placed inside a perfect black body is maintained at temperature $T$. The energy radiated per second by the body will be:

Which of the following laws states that "good absorbers of heat are good emitters"?

If $25\%$ of the total incident radiation $Q = 500 \, J$ is absorbed and $105 \, cal$ is transmitted,calculate the percentage of reflected power.

Vedclass Test Series

Exam Paper Generator

Online Exam Module