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

The graph shows the blackbody radiation curves at temperatures $T_1$ and $T_2$. Which of the following is correct? $(T_2 > T_1)$

What would happen if the greenhouse effect were not present?

$A$ sphere,a cube,and a thin circular plate,all made of the same material and having the same mass,are initially heated to a temperature of $1000^{\circ}C$. Which one of these will cool first?

The Sun emits radiation in all directions. The Earth receives approximately $1.4 \ kW/m^2$ of radiation per second. The distance between the Sun and the Earth is $1.5 \times 10^{11} \ m$. How much mass does the Sun lose per day? $(1 \ \text{day} = 86400 \ s)$

Heat radiations propagate with the speed of

Vedclass Test Series

Exam Paper Generator

Online Exam Module