If the number of cycles in a pulse increases while the wavelength remains the same, spatial pulse length will:

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Multiple Choice

If the number of cycles in a pulse increases while the wavelength remains the same, spatial pulse length will:

Explanation:
Spatial pulse length is the distance the pulse occupies in space, and it equals the number of cycles in the pulse times the wavelength. If the wavelength stays the same and you add more cycles, you extend the pulse in space. In tissue, the wavelength is determined by c/f; with a fixed frequency and medium, the wavelength remains constant, so increasing the number of cycles directly increases the spatial pulse length.

Spatial pulse length is the distance the pulse occupies in space, and it equals the number of cycles in the pulse times the wavelength. If the wavelength stays the same and you add more cycles, you extend the pulse in space. In tissue, the wavelength is determined by c/f; with a fixed frequency and medium, the wavelength remains constant, so increasing the number of cycles directly increases the spatial pulse length.

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