Question 1

How do you calculate wavelength from frequency?

Accepted Answer

λ = c/f. For 100 MHz: λ = 3×10⁸ / 10⁸ = 3 meters. Radio waves at 100 MHz are 3m long.

Question 2

What is wavelength used for?

Accepted Answer

Antenna design (antenna ≈ λ/4 or λ/2), optical filters, and understanding electromagnetic spectrum.

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.

Hertz to Wavelength Frequency Converter - Free Online Tool

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