Exam (elaborations)
wph12-01-que-
Exam of 24 pages for the course IGCSE at IGCSE (wph12-01-que-)
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Please check the examination details below before entering your candidate informationCandidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Time 1 hour 30 minutes Paper
reference WPH12/01
Physics
International Advanced Subsidiary/Advanced Level
UNIT 2: Waves and Electricity
You must have: Total Marks
Scientific calculator, ruler
Instructions
•• Use black ink or ball-point pen.
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
• Show all your working out in calculations and include units where appropriate.
Information
•• The total mark for this paper is 80.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• toIn the question marked with an asterisk (*), marks will be awarded for your ability
structure your answer logically, showing how the points that you make are
related or follow on from each other where appropriate.
• The list of data, formulae and relationships is printed at the end of this booklet.
Advice
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end.
Turn over
P71865A
©2023 Pearson Education Ltd.
J:1/1/1/
*P71865A0124*
, SECTION A
Answer ALL questions.
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
For questions 1–10, in Section A, select one answer from A to D and put a cross in the box . If you
change your mind, put a line through the box and then mark your new answer with a cross .
1 The graph shows how current I varies with potential difference V for an
electrical component.
I
V
Which component is represented by the graph?
A diode
B filament lamp
C resistor at constant temperature
D thermistor
(Total for Question 1 = 1 mark)
2 Monochromatic light travels through air and enters a glass block.
Which of the following quantities does not change as light enters the glass block?
A amplitude
B frequency
C speed
D wavelength
(Total for Question 2 = 1 mark)
2
*P71865A0224*
, 3 A ray of light approaches a boundary between air and glass, as shown.
The angle of incidence is i.
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
glass
i air
Which of the following statements about total internal reflection (TIR) is correct for the
ray of light at this boundary?
A TIR cannot take place.
B TIR takes place if i is equal to the critical angle.
C TIR takes place if i is greater than the critical angle.
D TIR takes place if i is less than the critical angle.
(Total for Question 3 = 1 mark)
4 The equation nλ = d sin θ can be used to determine the wavelength of laser light that has
passed through a diffraction grating.
Which of the following is represented by d in the equation?
A distance between adjacent lines on the diffraction grating
B distance between the diffraction grating and the screen
C number of lines per metre on the diffraction grating
D order of the maximum observed on the screen
(Total for Question 4 = 1 mark)
3
*P71865A0324* Turn over
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