An ultrasonic longitudinal wave travels in aluminum with a velocity of 635,000 cm/s and a frequency of 1 MHz. The wavelength is

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Multiple Choice

An ultrasonic longitudinal wave travels in aluminum with a velocity of 635,000 cm/s and a frequency of 1 MHz. The wavelength is

Explanation:
Wavelength is found using λ = v / f. With v = 635,000 cm/s and f = 1,000,000 Hz, λ = 635,000 / 1,000,000 = 0.635 cm. Convert to inches: 0.635 cm ÷ 2.54 cm/in ≈ 0.25 inches. So the wavelength is about 0.25 inches. The other values don’t fit because they would require a different combination of speed and frequency than the ones given.

Wavelength is found using λ = v / f. With v = 635,000 cm/s and f = 1,000,000 Hz, λ = 635,000 / 1,000,000 = 0.635 cm. Convert to inches: 0.635 cm ÷ 2.54 cm/in ≈ 0.25 inches. So the wavelength is about 0.25 inches. The other values don’t fit because they would require a different combination of speed and frequency than the ones given.

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