Question icon
Grade 12Thermal Physics

A black Body is at a temperature of 2880K.The energy of radiation emiited by this object with wavelength between 499nm and 500nm is U1, between 999nm and 1000nm is U2 and between 1499nm and 1500nm is U3.The Wien constant,b is 2.88*10^6 nm-K.Then

(a)U1= 0

(b)U3= 0

(c)U1>U2

(d)U2>U1

Profile image of SOHAN  SARANGI
15 Years agoGrade 12
Answers icon

3 Answers

Profile image of Karteek Ravindra Bhat
15 Years ago

The answer is c bcs wavelength and temperature are inveresly prop to each other!!!!!!!!!

Profile image of dvm srikant
15 Years ago

the answer is c                                                                                                                                                                                                          pls apoprove

Profile image of Chetan Mandayam Nayakar
14 Years ago

A black body at a given temperature emits different amounts of energy at different wavelengths. Wien' law states that the maximum energy is emitted at wavelength lambda =b/T= 1000k,

Therefore, answer is (d)