MHT CET · Physics · Thermal Properties of Matter
The unit of Wien's constant \(b\) is
- A \(\mathrm{Wm}^{-2} \mathrm{~K}^{-4}\)
- B \(\mathrm{m}^{-1} \mathrm{~K}^{-1}\)
- C \(\mathrm{Wm}^{2}\)
- D \(\mathrm{m}-\mathrm{K}\)
Answer & Solution
Correct Answer
(D) \(\mathrm{m}-\mathrm{K}\)
Step-by-step Solution
Detailed explanation
According to Wien's law the product of wavelength corresponding to maximum intensity of radiation and temperature of body (in Kelvin) is constant ie, \(\lambda_{m} T=b=\) constant
where \(b\) is Wien's constant and has value \(2.89 \times 10^{-3} \mathrm{~m}-\mathrm{K}\)
where \(b\) is Wien's constant and has value \(2.89 \times 10^{-3} \mathrm{~m}-\mathrm{K}\)
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