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Reflection of light

3.2.1

What the syllabus asks of you

  • Define and use the terms normal, angle of incidence and angle of reflection
  • Describe an experiment to illustrate the law of reflection
  • Describe an experiment to find the position and characteristics of an optical image formed by a plane mirror (same size, same distance from mirror as object and virtual)
  • State that for reflection, the angle of incidence is equal to the angle of reflection and use this in constructions, measurements and calculations

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Chapter 3: Reflection of light

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26 questions

1May / June 2026 · Paper 11 · Q21
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A40°
B50°
C80°
D100°

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2May / June 2026 · Paper 12 · Q24
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AIt decreases by 1.0 m.
BIt decreases by 2.0 m.
CIt increases by 1.0 m.
DIt increases by 2.0 m.

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3Oct / Nov 2025 · Paper 11 · Q19Also set in May / June 2019 Paper 11
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A10°
B25°
C45°
D50°

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4Oct / Nov 2025 · Paper 12 · Q28
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AA
BB
CC
DD

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5Oct / Nov 2025 · Paper 12 · Q29
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Areal and smaller than the object
Breal and the same size as the object
Cvirtual and smaller than the object
Dvirtual and the same size as the object

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6May / June 2025 · Paper 11 · Q19
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AA
BB
CC
DD

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7May / June 2025 · Paper 11 · Q20
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A0
B25 cm
C50 cm
D75 cm

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8May / June 2025 · Paper 12 · Q21
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Aangle of incidence / °: 40; angle of reflection / °: 40
Bangle of incidence / °: 40; angle of reflection / °: 50
Cangle of incidence / °: 50; angle of reflection / °: 40
Dangle of incidence / °: 50; angle of reflection / °: 50

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9Oct / Nov 2024 · Paper 12 · Q20
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A30°
B60°
C90°
D120°

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10Oct / Nov 2024 · Paper 12 · Q21
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AO upright, I upright
BO upright, I inverted
CO upright, I upright
DO upright, I inverted

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11May / June 2024 · Paper 11 · Q23
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Asame as object, real
Bsame as object, virtual
Csmaller than object, real
Dsmaller than object, virtual

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12Oct / Nov 2023 · Paper 11 · Q18
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Areal and inverted
Breal and upright
Cvirtual and inverted
Dvirtual and upright

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13Oct / Nov 2023 · Paper 12 · Q26
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AA
BB
CC
DD

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14May / June 2023 · Paper 11 · Q19Also set in May / June 2018 Paper 11, May / June 2018 Paper 12
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AA
BB
CC
DD

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15May / June 2023 · Paper 11 · Q20
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A22.5° clockwise
B22.5° anticlockwise
C45° clockwise
D45° anticlockwise

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16May / June 2023 · Paper 12 · Q19
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Areal and upside down
Bvirtual and upright
Creal and larger than the object
Dvirtual and smaller than the object

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17Oct / Nov 2022 · Paper 12 · Q22Also set in Oct / Nov 2022 Paper 11
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A40°
B90°
C100°
D140°

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18May / June 2022 · Paper 12 · Q24
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AThe angle between PQ and QR is 45°.
BThe angle between QR and RS is 180°.
CThe angle of incidence of PQ on mirror X is 60°.
DThe angle of incidence of QR on mirror Y is 45°.

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19Oct / Nov 2021 · Paper 12 · Q23
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Asymbol of angle X: i; relationship between X and Y: X = Y
Bsymbol of angle X: i; relationship between X and Y: X + Y = 90°
Csymbol of angle X: r; relationship between X and Y: X = Y
Dsymbol of angle X: r; relationship between X and Y: X + Y = 90°

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20Oct / Nov 2020 · Paper 11 · Q27
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AP ✓ Q ✓ R ✓
BP ✓ Q ✓ R ✗
CP ✓ Q ✗ R ✗
DP ✗ Q ✗ R ✗

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21Oct / Nov 2020 · Paper 12 · Q23
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Areal, inverted and smaller than the object
Breal, upright and the same size as the object
Cvirtual, upright and smaller than the object
Dvirtual, upright and the same size as the object

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22Oct / Nov 2019 · Paper 12 · Q24
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AIt reflects and passes through the bottom of O.
BIt reflects and passes through the top of O.
CIt reflects as though it came from the bottom of I.
DIt reflects as though it came from the top of I.

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23Oct / Nov 2017 · Paper 12 · Q20
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Adiagram A
Bdiagram B
Cdiagram C
Ddiagram D

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24Oct / Nov 2016 · Paper 11 · Q23
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A30°
B40°
C50°
D60°

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25May / June 2016 · Paper 11 · Q21
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Adiagram A
Bdiagram B
Cdiagram C
Ddiagram D

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26May / June 2016 · Paper 12 · Q18
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A40° normal
B40° reflected ray
C50° normal
D50° reflected ray

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