Physics A-Level

Allowed wavelengths

What Allowed wavelengths means in Physics A-Level, as defined for AQA.

Definition of Allowed wavelengths

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Reference: AQA

For a string of length L fixed at both ends, the ends must be nodes, so λ = 2L/n where n is a positive integer.

AQA · Principle of superposition of waves and formation of stationary waves (study guide)

Topics that use Allowed wavelengths

Principle of superposition of waves and formation of stationary waves (AQA A-Level)

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