Question

The peak of intensity for our Sun on a black body curve would be in which of the following wavelength ranges?0.01 – 10nm

10- 380nm
560- 600nm
1,000,000 to 100,000,000nm

Answer 1

The answer is,

560- 600nm

Answer 2

560 nm to 600 nm

Explanation:

One of the characteristics of a black body is that it absorbs all radiation which is falling on it. The diagram for the wavelength and intensity of a black body is exhibited in the added figure. The intensity of a radiation depends on the temperature of the body. From the figure, it is explicit that the peak of intensity of our sun is in visible area.

The relationship between the temperature and the intensity of a body is given by Stefan- Boltzmann law. So it is clear that the peak of intensity for our Sun on a black body curve would be in 560 nm to 600 nm.

Hence, the correct option is (c) " 560 nm to 600 nm ".