DP Physics (first assessment 2025)

Question EXE.2.HL.TZ0.17b

Date	Example questions Example questions	Marks available	[Maximum mark: 2]	Reference code	EXE.2.HL.TZ0.17b
Level	HL	Paper	2	Time zone	TZ0
Command term	Determine	Question number	b	Adapted from	N/A

[Maximum mark: 2]

EXE.2.HL.TZ0.17b

(b)

Determine the wavelength of the incident photon.

[2]

Markscheme

Energy of incident photon =« $15.9 \times 10^{3} + 500 =$ » $16.4 \times 10^{3}$ «eV» ✓

Wavelength of incident photon =« $\frac{1.24 \times 10^{- 6}}{16.4 \times 10^{3}} =$ » $7.56 \times 10^{- 11}$ «m» ✓

Syllabus sections