The surface temperature of a particular star which is assumed to behave like a black body is about `5xx10^(4)`K. What is the wavelength in nanometre at which its intensity of radiation becomes maximum ? [b = `2.9xx10^(-3)`mK]

Options

A. 48
B. 58
C. 38
D. 38

Answer

B

Explanation

`lamda_(max)T=b`
`thereforelamda_(max)=(2.9xx10^(-3))/(5xx10^(4))=58xx10^(-9)m=58nm`