DP Physics (first assessment 2025)

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Question 23M.2.HL.TZ1.8aii

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Date May 2023 Marks available [Maximum mark: 2] Reference code 23M.2.HL.TZ1.8aii
Level HL Paper 2 Time zone TZ1
Command term Calculate Question number ii Adapted from N/A
ii.
[Maximum mark: 2]
23M.2.HL.TZ1.8aii
(ii)

the longest wavelength of a photon that will eject an electron from this surface.

[2]

Markscheme

Use of hcλ=ϕ⇒λ=hcϕ ✓

λ=«6.63×10-343×108468×10-91.6×10-19 =» 1.45 × 10−6 «m»✓

Allow ECF from a(i)

Syllabus sections