Laju cahayo

Kacapatan cahayo, atau bahaso Inggirih: lightspeed, di ruang hampa udaro , umumnyo dilambangkan c,[1] adalah universal konstan fisika pantiang dalam banyak bidang fisika. Nilai eksaknyo didefinisikan sabagai 299792458 meter per detiak (sakitar 300 000 km/s , atau 186000 mi/s ). Hal iko topek kareno, talah sapakek jo internasional, meteran didefinisikan sabagai panjang jalan nan dituju oleh cahayo dalam ruang hampa salamo selang waktu dari 1/299 792 458 detik.

Kacapatan cahayo
Lightning3.jpg
Kilek dapek sabagai contoh alami mangukua laju cahayo, dapek pulo dangan listrik togangan tenggi diateh 12000 Volt nan biaso dipakai pado industri.
Simbol umumc atau c
Satuan lainnyoTm/s, mps, m/s
Dalam satuan pokok SIm/s

RujuakanSuntiang

  1. "The origins of the letter c being used for the speed of light can be traced back to a paper of 1856 by Weber and Kohlrausch [...] Weber apparently meant c to stand for 'constant' in his force law, but there is evidence that physicists such as Lorentz and Einstein were accustomed to a common convention that c could be used as a variable for velocity. This usage can be traced back to the classic Latin texts in which c stood for 'celeritas', meaning 'speed'."

Pautan luaSuntiang