Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
PHYSICS
Paper 2
Friday 15 May 2020 Morning Time allowed: 1 hour 30 minutes
Materials
You are advised to spend about
For this paper you must have: 35 minutes on Section C
• a pencil and a ruler
• a scientific calculator For Examiner’s Use
• a Data and Formulae Booklet. Question Mark
1
Instructions
• Use black ink or black ball-point pen. 2
• Fill in the boxes at the top of this page. 3
• Answer all questions.
4
• You must answer the questions in the spaces provided. Do not write
outside the box around each page or on blank pages. 5–34
• If you need extra space for your answer(s), use the lined pages at the end of TOTAL
this book. Write the question number against your answer(s).
• Do all rough work in this book. Cross through any work you do not want
to be marked.
• Show all your working.
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 70.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
*JUN207407201*
IB/M/Jun20/E8 7407/2
, 2
Do not write
outside the
Section A box
Answer all questions in this section.
0 1 A student places a transparent semicircular block on a sheet of paper and draws
around the block. She directs a ray of light at the centre of the flat edge of the block.
Figure 1 shows the path of the ray through the block.
Figure 1
0 1 . 1 State why the emergent ray does not change direction as it leaves the block.
[1 mark]
0 1 . 2 The student draws an arrow on the paper to mark the incident ray. She marks the
path of the emergent ray with crosses A, B and C.
She removes the block from the paper and places a protractor over the outline of the
block, as shown in Figure 2.
*02*
IB/M/Jun20/7407/2
, 3
Do not write
outside the
Figure 2 box
Determine, using Figure 2, the refractive index of the block.
[4 marks]
refractive index =
Question 1 continues on the next page
Turn over ►
*03*
IB/M/Jun20/7407/2
, 4
Do not write
outside the
The student uses a different method to determine the refractive index of the block. box
She focuses a travelling microscope on some dots on a sheet of paper for each of the
three situations shown in Figure 3.
Figure 3
Table 1 shows the readings made by the student.
Table 1
R0 / mm R1 / mm R2 / mm
5.74 10.31 20.02
*04*
IB/M/Jun20/7407/2
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
PHYSICS
Paper 2
Friday 15 May 2020 Morning Time allowed: 1 hour 30 minutes
Materials
You are advised to spend about
For this paper you must have: 35 minutes on Section C
• a pencil and a ruler
• a scientific calculator For Examiner’s Use
• a Data and Formulae Booklet. Question Mark
1
Instructions
• Use black ink or black ball-point pen. 2
• Fill in the boxes at the top of this page. 3
• Answer all questions.
4
• You must answer the questions in the spaces provided. Do not write
outside the box around each page or on blank pages. 5–34
• If you need extra space for your answer(s), use the lined pages at the end of TOTAL
this book. Write the question number against your answer(s).
• Do all rough work in this book. Cross through any work you do not want
to be marked.
• Show all your working.
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 70.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
*JUN207407201*
IB/M/Jun20/E8 7407/2
, 2
Do not write
outside the
Section A box
Answer all questions in this section.
0 1 A student places a transparent semicircular block on a sheet of paper and draws
around the block. She directs a ray of light at the centre of the flat edge of the block.
Figure 1 shows the path of the ray through the block.
Figure 1
0 1 . 1 State why the emergent ray does not change direction as it leaves the block.
[1 mark]
0 1 . 2 The student draws an arrow on the paper to mark the incident ray. She marks the
path of the emergent ray with crosses A, B and C.
She removes the block from the paper and places a protractor over the outline of the
block, as shown in Figure 2.
*02*
IB/M/Jun20/7407/2
, 3
Do not write
outside the
Figure 2 box
Determine, using Figure 2, the refractive index of the block.
[4 marks]
refractive index =
Question 1 continues on the next page
Turn over ►
*03*
IB/M/Jun20/7407/2
, 4
Do not write
outside the
The student uses a different method to determine the refractive index of the block. box
She focuses a travelling microscope on some dots on a sheet of paper for each of the
three situations shown in Figure 3.
Figure 3
Table 1 shows the readings made by the student.
Table 1
R0 / mm R1 / mm R2 / mm
5.74 10.31 20.02
*04*
IB/M/Jun20/7407/2
