2(b)2020
DiagramModerate2 marks
Refraction of Light at Plane Surfaces
Appeared in 10 of the 11 available papers.
Examined in
10 of 11 papers
Appears almost every year — treat as core
Typically worth
11.3 marks
Average per paper it appears in · 113 marks in total
Usual form
Short answer
40% of this chapter's 82 questions
Needs a diagram
54%
44 questions carry a figure — practise drawing them
Question-type distribution
- Short answer33
- Diagram14
- MCQ13
- Numerical8
- Reasoning4
- Identification4
- True/False3
- Fill in the blank2
Most frequent topics
Refraction / total internal reflection 38Total internal reflection in a prism 3Critical angle and colour 2Real and apparent depth 2Relative refractive index 2Speed of light in a medium 2Minimum deviation in a prism 2Refraction through a prism 2
Showing 25 of 82 matching questions (113 marks).
25 questions
2(c)2020
DiagramModerate2 marks
2(e)2020
NumericalModerate2 marks
6(a)
A diver in water looks obliquely at an object AB in air.
6(a)(i)2020
Short answerEasy1 mark
6(a)(ii)2020
Short answerEasy2 marks
6
6(b)2020
DiagramModerate3 marks
2(e)2019
DiagramModerate2 marks
6(a)2019
DiagramModerate3 marks
2(e)2018
DiagramModerate2 marks
6(a)
A ray of light XY passes through a right angled isosceles prism as shown below.
6(a)(i)2018
Short answerEasy1 mark
6(a)(ii)2018
Short answerEasy1 mark
6(a)(iii)2018
Short answerEasy1 mark
7(a)2018
DiagramModerate3 marks
2(d)
How is the refractive index of a material related to :
2(d)(i)2017
Short answerEasy1 mark
2(d)(ii)2017
Short answerEasy1 mark
2(e)2017
Short answerEasy2 marks
3(a)2017
DiagramModerate2 marks
