Frequency

Frequency ii batae hae ki ek ghatna ketnaa dafe khud se dohraawe hae. Bahutik vigyan (Physics) me lahar (wave) ke ketnaa crests ek jagha ke pass kare hae ek second me ke frequency bolaa jaae hae. Frequency ke Hertz (Hz) me likha jaae hae. Frequency aur wavelength ke biich ke sambandh ke ii formula me dekhaawa jaae hae:

${\displaystyle f=v/\lambda }$

jahaan pe v wave kke raftaar aur ${\displaystyle \lambda }$ (lambda) wavelength hae. Light ke frequency ke formula hae ${\displaystyle f=c/\lambda }$ jahaan pe c speed of light hae.^[1]

Sab electromagnetic wave, vacuum me, roshni (light) ke raftaar pe chale hae lekin jab ii aur koi medium me chale hae tab ii dhire hoe jaae hae. Aur wave, jaise ki awaaj, bahut dhire chale hae aur vacuum me se nai chale sake hae.