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Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-9702-WA3-0011 markL1 FoundationCalculatorEM spectrum
Calculate the wavelength of microwaves of frequency 1.0×10101.0\times10^{10} Hz.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA3-0021 markL1 FoundationCalculatorEM spectrum
An electromagnetic wave has a wavelength of about 10−1010^{-10} m. It is most likely
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA3-0031 markL1 FoundationCalculatorEM spectrum
Calculate the frequency of light of wavelength 500500 nm, in units of 101410^{14} Hz.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA3-0041 markL1 FoundationCalculatorPolarisation
Which type of wave can be polarised?
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA3-0051 markL1 FoundationCalculatorPolarisation
Plane-polarised light passes through an analyser whose axis is at 60∘60^\circ to the plane of polarisation. Calculate the fraction of the intensity transmitted.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA3-0071 markL1 FoundationCalculatorPolarisation
Unpolarised light passes through a single polarising filter. State the fraction of the intensity transmitted.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA3-0081 markL1 FoundationCalculatorPolarisation
Sound waves cannot be polarised because they are
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA3-0101 markL1 FoundationCalculatorEM spectrum
In a vacuum, all electromagnetic waves have the same
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA3-0121 markL1 FoundationCalculatorEM spectrum
The approximate range of wavelengths of visible light in free space is
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA3-0061 markL2 StandardCalculatorPolarisation
Calculate the angle between a polariser and analyser that transmits half the intensity of plane-polarised light.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA3-0092 marksL2 StandardCalculatorPolarisation
Unpolarised light of intensity 8080 W m⁻² passes through two polarising filters with axes at 30∘30^\circ to each other. Calculate the final intensity.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA3-0113 marksL3 ExamCalculatorPolarisation
Unpolarised light of intensity II passes through three polarisers with axes at 0∘0^\circ, 45∘45^\circ and 90∘90^\circ. Calculate the final intensity as a fraction of II.

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Salam Academy Original Practice · Proposed mark scheme