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Date November 2017 Marks available 1 Reference code 17N.1.SL.TZ0.28
Level Standard level Paper Paper 1 Time zone Time zone 0
Command term Question number 28 Adapted from N/A

Question

A black body emits radiation with its greatest intensity at a wavelength of Imax. The surface temperature of the black body doubles without any other change occurring. What is the wavelength at which the greatest intensity of radiation is emitted?

A. Imax

B. \(\frac{{{\text{I}}{{\text{}}_{{\text{max}}}}}}{{\text{2}}}\)

C. \(\frac{{{\text{I}}{{\text{}}_{{\text{max}}}}}}{{\text{4}}}\)

D. \(\frac{{{\text{I}}{{\text{}}_{{\text{max}}}}}}{{\text{16}}}\)

Markscheme

B

Examiners report

[N/A]

Syllabus sections

Core » Topic 8: Energy production » 8.2 – Thermal energy transfer
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