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STD 11 - 10.2. transmission of heat — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 10.2. transmission of heat4 Marks
MCQ
The energy distribution $E$ with the wavelength $(\lambda )$ for the black body radiation at temperature $T\;Kelvin$is shown in the figure. As the temperature is increased the maxima will
  • ✓
    Shift towards left and become higher
  • B
    Rise high but will not shift
  • C
    Shift towards right and become higher
  • D
    Shift towards left and the curve will become broader
✓

Answer

Correct option: A.
Shift towards left and become higher
a
(a)  According to Wein's displacement law ${\lambda _m} \propto \frac{1}{T}$.

Hence, if temperature increases ${\lambda _m}$ decreases i.e., peak of the $E - \lambda $ curve shift towards left.

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