Question 1

What is terahertz?

Accepted Answer

10^12 Hz. Between microwave and infrared. Terahertz imaging used in security, medicine.

Question 2

What are terahertz waves used for?

Accepted Answer

Body scanners, spectroscopy, seeing through materials. 'Terahertz gap' is active research area.

Question 3

What's the relationship between frequency and wavelength?

Accepted Answer

They're inversely related: wavelength × frequency = wave speed. For sound in air: wavelength (m) ≈ 343 / frequency (Hz).

Question 4

Why use Hz vs RPM?

Accepted Answer

Hz (cycles per second) is universal for waves and oscillations. RPM (revolutions per minute) is more intuitive for rotating machinery and engines.

Terahertz to Hertz Frequency Converter - Free Online Tool

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