DP Physics (first assessment 2025)

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Question 22M.1A.SL.TZ2.30

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1A.SL.TZ2.30
Level SL Paper 1A Time zone TZ2
Command term Question number 30 Adapted from N/A
30.
[Maximum mark: 1]
22M.1A.SL.TZ2.30

The Sankey diagrams for a filament lamp and for an LED bulb are shown below.

What is the efficiency of the filament lamp and the LED bulb?

[1]

Markscheme

A

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