DP Physics (first assessment 2025)

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Question 21M.2.SL.TZ1.8b.i

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Date May 2021 Marks available [Maximum mark: 2] Reference code 21M.2.SL.TZ1.8b.i
Level SL Paper 2 Time zone TZ1
Command term Show that Question number b.i Adapted from N/A
b.i.
[Maximum mark: 2]
21M.2.SL.TZ1.8b.i
(b.i)

Show that the speed of the wave on the string is about 240 m s−1.

[2]

Markscheme

λ=2l=2×0.62=«1.24 m» ✓

v=fλ=195×1.24=242 «m s-1» ✓

Answer must be to 3 or more sf or working shown for MP2.

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