MYP Physics · 11 · multiple choice
Measure reflection from the normal
Light and optics · Original GioPhysics question with a detailed, mark-by-mark answer guide.
- Demand
- recall
- Marks
- 2
- Topics
- 1
- Answer
- Complete
multiple choice2 marks
A narrow ray meets a plane mirror at 35° to the normal. What is the angle between the reflected ray and the normal?
- a
Select and explain Select the correct angle and explain the rule you used.
2 marks
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Answer overviewCorrect answer: B — 35°
01
2 marksa
Select and explain Select the correct angle and explain the rule you used.
How to approach it
Predict from the governing principle before looking for a matching option. Then reject alternatives by checking direction, units, limiting behaviour or the physical meaning of each statement.
- 1
Selects option B: the reflected ray makes an angle of 35° with the normal.
- 2
States that the angle of reflection equals the angle of incidence when both are measured from the normal.
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