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For an enclosure maintained at 2000K, th...

For an enclosure maintained at 2000K, the maximum radiation occurs at wavelength `lambda_m`. If the temperature is raised to 3000K, the peak will shift to

A

`0.5 lambda_m`

B

`lambda_m`

C

`2/3 lambda_m`

D

`3/2lambda_m`

Text Solution

Verified by Experts

The correct Answer is:
C
`lambda_m prop 1/T`
`:. ((lambda_m)_2)/((lambda_m)_1) = T_1/T_2 = 2000/3000 = 2/3`
`:. (lambda_m)_2 = 2/3(lambda_m)_1`.
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Knowledge Check

  • A black body at 200 K is found to emit maximum energy at a wavelength of 14mu m . When its temperature is raised to 1000 K, the wavelength at which maximum energy is emitted is

    A
    `14mum`.
    B
    `70mum`.
    C
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    `2.4mum`.

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    A
    `14 mu m`
    B
    `70 mu F`
    C
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    D
    `2.8 mm`

  • A black body is at 2000 K, it emits maximum energy at a wavelength. 1mum. . The temperature, it emits at wavelength of 2mum is

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    B
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