DP Physics (last assessment 2024)

Question 20N.1.HL.TZ0.24

Date	November 2020	Marks available	[Maximum mark: 1]	Reference code	20N.1.HL.TZ0.24
Level	HL	Paper	1	Time zone	TZ0
Command term		Question number	24	Adapted from	N/A

24.

[Maximum mark: 1]

20N.1.HL.TZ0.24

The mass of nuclear fuel in a nuclear reactor decreases at the rate of $8 mg$ every hour. The overall reaction process has an efficiency of $50 %$ . What is the maximum power output of the reactor?

A. $100 MW$

B. $200 MW$

C. $100 GW$

D. $200 GW$

[1]

Markscheme

Examiners report

The discrimination index was below the desired 0.2 with a high number of blank responses and many candidates choosing each of the options. This is a question requiring consideration of units using 10^-6 for mg to kg and also remembering to allow for efficiency.

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Core

Core » Topic 7: Atomic, nuclear and particle physics » 7.2 – Nuclear reactions

Core » Topic 7: Atomic, nuclear and particle physics

Question 20N.1.HL.TZ0.24

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