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2.3.3a Thermal radiation

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Question 81

Object A has a dull black surface and is at a constant temperature. Object B is identical in shape and is at the same constant temperature as object A, but has a shiny silver surface. Which option correctly compares the rates of absorption and emission of thermal radiation for object B with those for object A?

A

Rate of absorption for B is higher; rate of emission for B is higher

B

Rate of absorption for B is higher; rate of emission for B is lower

C

Rate of absorption for B is lower; rate of emission for B is higher

D

Rate of absorption for B is lower; rate of emission for B is lower

Markscheme

2.3.3a Thermal radiation Questions

  1. IGCSE
  2. /Physics
  3. /2.3.3a Thermal radiation

99 exam-style questions on CIE IGCSE Physics 2.3.3a Thermal radiation. Each one has a worked solution and a mark scheme showing where the marks go.

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