User interface language: English | Español

Date May 2014 Marks available 1 Reference code 14M.1.SL.TZ2.26
Level Standard level Paper Paper 1 Time zone Time zone 2
Command term Question number 26 Adapted from N/A

Question

A black body has absolute temperature T and surface area A. The intensity of the radiation emitted by the body is I. Another black body of surface area 2A has absolute temperature 2T. What is the intensity of radiation emitted by this second black body?

A. 4I

B. 8I

C. 16I

D. 32I

Markscheme

D

Examiners report

[N/A]

Syllabus sections

Core » Topic 8: Energy production » 8.2 – Thermal energy transfer
Show 82 related questions

View options