May/June 2026 Paper 41

2026 · 10 questions · 45 parts · 100 marks

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1(a)1(b)(i)1(b)(ii)1(b)(iii)1(b)(iv)

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2(a)2(b)(i)2(b)(ii)2(c)2(d)(i)2(d)(ii)2(d)(iii)

–/13 mks

3(a)3(b)(i)3(b)(ii)3(c)

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4(a)(i)4(a)(ii)4(b)(i)4(b)(ii)

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–/8 mks

6(a)6(b)(i)6(b)(ii)6(c)(i)6(c)(ii)6(d)

–/12 mks

7(a)(i)7(a)(ii)7(b)

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8(a)8(b)(i)8(b)(ii)8(b)(iii)8(b)(iv)8(c)

–/13 mks

9(a)9(b)(i)9(b)(ii)

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10(a)10(b)(i)10(b)(ii)10(b)(iii)

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8(a)Photons Photoelectric EffectEasy2 marks

State what is meant by a photon.

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8(b)(i)X Ray Ct Pet ImagingEasy1 mark

X-rays for use in medical diagnosis are produced by accelerating charged particles towards a metal target. State the name of the charged particles.

8(b)(ii)X Ray Ct Pet ImagingEasy2 marks

Describe how X-rays are formed at the target.

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8(b)(iii)X Ray Ct Pet ImagingMedium3 marks

For any given accelerating voltage, there is a range of wavelengths of X-rays produced that has a minimum value. Explain, with reference to photons, why there is a range of wavelengths and why this range has a minimum value.

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8(b)(iv)X Ray Ct Pet ImagingMedium3 marks

Calculate the minimum wavelength of X-rays produced when the accelerating voltage is

52.0 kV

.

8(c)X Ray Ct Pet ImagingEasy2 marks

X-rays are used to create an image of the internal structure of an object that is made from two types of material of similar thickness. Describe and explain how a property of the materials determines whether or not the image produced has good contrast.

Answer

0 words