DP Physics (first assessment 2025)

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Question EXE.2.HL.TZ0.14b

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Date Example questions Example questions Marks available [Maximum mark: 2] Reference code EXE.2.HL.TZ0.14b
Level HL Paper 2 Time zone TZ0
Command term Estimate Question number b Adapted from N/A
b.
[Maximum mark: 2]
EXE.2.HL.TZ0.14b
(b)

A throw is made once every minute. Estimate the average time required before a throw occurs where all coins are heads or all coins are tails.

[2]

Markscheme

Two chances in 1024 so once every 512 throws ✓ 

512 throws take 8.5 h so (a reasonable estimate is half way through) on average 4.3 h ✓

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