(a)A student compares black and silver test-tube surfaces as emitters of infra-red radiation using hot water. State one additional piece of apparatus needed.
2016 · M/J · 5054/41 | Q4
Options
Alternative to Practical: use the original printed figures and show graph/measurement working. The printed 2(b)(i) table entry carries no separate mark; it is retained as context for the graph.
(b)Describe how to compare the two test-tube surfaces as infra-red emitters. State the readings taken; a labelled diagram is optional.
(c)State two quantities held constant when comparing the black and silver test tubes.
5054/41/M/J/16Cambridge O Level Physics 5054 · May/June 2016 · Paper 4 variant 1 · Question 4