About black body radiation, which one of the | vedclass

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

Question

$(A)$ black body is an idealized physical body that absorbs all incident electromagnetic radiation. According to Planck's Law of black body radiation,

Vedclass · Accepted Answer

For all wavelengths, power radiated is same

Vedclass · Answer

$(A)$ black body is an idealized physical body that absorbs all incident electromagnetic radiation. According to Planck's Law of black body radiation, the power radiated by a black body depends on the wavelength $(\lambda)$ and temperature $(T)$.$1$. A black body emits radiation across all wavelengths, but the intensity (power per unit area per unit wavelength) is not the same for all wavelengths.$2$. The spectral distribution curve shows that for a given temperature, the intensity varies with wavelength, peaking at a specific wavelength $(\lambda_{max})$ determined by Wien's Displacement Law $(\lambda_{max} T = 	ext{constant})$.$3$. Therefore, the statement 'For all wavelengths, power radiated is same' is incorrect because the power radiated is a function of wavelength and follows a specific distribution curve.

About black body radiation, which one of the following is a $WRONG$ statement?

Similar Questions

Three identical metal spheres (of same surface area) have red,black,and white colors and they are heated up to the same temperature. They are allowed to cool. Arrange them from maximum rate of cooling to minimum rate of cooling.

If the absorptance and reflectance of a surface are $0.4$ and $0.6$ respectively,then:

Regarding black body radiation,which one of the following is the $WRONG$ statement?

Good absorbers of heat are

For an opaque body,the coefficient of transmission is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module