1. (a) Draw one line from each use of wave to the matching electromagnetic wave - Edexcel - GCSE Physics Combined Science - Question 1 - 2020 - Paper 1
Question 1
1. (a) Draw one line from each use of wave to the matching electromagnetic wave.
One line has been drawn for you.
use of wave
electromagnetic wave
to detect forged ... show full transcript
Worked Solution & Example Answer:1. (a) Draw one line from each use of wave to the matching electromagnetic wave - Edexcel - GCSE Physics Combined Science - Question 1 - 2020 - Paper 1
Step 1
to detect forged banknotes
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Answer
radio waves
Step 2
to detect broken bones
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X-rays
Step 3
for night-vision cameras
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infrared waves
Step 4
to sterilise medical equipment
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gamma rays
Step 5
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B green
Step 6
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Answer
The brightness increases as the wavelength decreases from around 420 nm to approximately 380 nm, reaching a peak brightness before decreasing again beyond that point. This indicates that shorter wavelengths produce higher brightness.
