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Look at the diagram of a wave - OCR Gateway - GCSE Physics - Question 6 - 2020 - Paper 2
Question 6
Look at the diagram of a wave. What is the wavelength of the wave? A 2 cm B 3 cm C 4 cm D 6 cm Your answer
Worked Solution & Example Answer:Look at the diagram of a wave - OCR Gateway - GCSE Physics - Question 6 - 2020 - Paper 2
Step 1
What is the wavelength of the wave?
Answer
To determine the wavelength of the wave from the given diagram, we need to analyze the distance between two successive peaks (or troughs) of the wave.
From the diagram, we observe that the wave completes one full cycle between the distance of 3 cm and 7 cm.
The calculation to find the wavelength is:
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Measure the distance from one peak to the next peak. This distance can be seen as the difference in position:
Wavelength = Distance between two peaks = 7 cm - 3 cm = 4 cm
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Then, we identify the correct option from the choices provided:
- A: 2 cm
- B: 3 cm
- C: 4 cm
- D: 6 cm
The wavelength of the wave is therefore C: 4 cm.