NEET 2016 Physics and Chemistry Paper 1

Given, temperature, T1=5760K
Given that energy of radiation emitted by the body at wavelength 250nm in U1, at wavelength 500nm is U2 and that at 1000nm is U3.
Now, according to Wein's law, we get
λmT=b
where, b= Wien's constant =2.88×106nmK
⇒λm=‌

b

T

⇒λm=‌

2.88×106nmk

5760K

⇒λm=500nm
λm is the wavelength corresponding to maximum energy, so U2>U1.
Given, temperature, T1=5760K
Given that energy of radiation emitted by the body at wavelength 250nm in U1, at wavelength 500nm is U2 and that at 1000nm is U3.
Now, according to Wein's law, we get
λmT=b
where, b= Wien's constant =2.88×106nmK
⇒λm=‌

b

T

⇒λm=‌

2.88×106nmk

5760K

⇒λm=500nm
λm is the wavelength corresponding to maximum energy, so U2>U1.