JEE Wave Shortcuts

JEE Wave Shortcuts

### Shortcut 1

Wave speed depends on medium:

$$v=constant$$

when medium is unchanged.

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### Shortcut 2

Frequency remains unchanged during refraction.

$$f_1=f_2$$

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### Shortcut 3

Change in wavelength:

$$\lambda=\frac{v}{f}$$

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### Shortcut 4

For string waves:

$$v\propto\sqrt{\frac{T}{\mu}}$$

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### Shortcut 5

Standing wave energy does not transfer.

$$Net\ Energy\ Transfer=0$$