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The maximum energy in the thermal radiation from a hot source occurs at a wavelength of 11 x 10^-5 cm. According to Wien's law, the temperature of the source (on Kelvin scale) will be n times the temperature of another source (on Kelvin's scale) for which the wavelength at maximum energy is 5.5 x 10^-5 cm. The value of n is

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Detailed Solution

$λ_{m} T = constant \begin{array}{l} (11 \times 10^{- 5}) T = (5 \cdot 5 \times 10^{- 5}) nT \\ n = 2 \end{array}$

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