Question

What does letter h mean in physics??​

Answer 1

"h" is planck. So in physics, when you multiply h by frequency, you get energy from Hertz.

I hope this helps!! Have a nice day!

~abelxoconda

Answer 2

The photon energy is the light frequency times Planck's constant. ... Planck's constant is usually called "h". Its value is about 6.626*10^-34 Joules/ Hz. A Joule is a unit of energy, and a Hertz is a unit of frequency, so when you multiply a frequency by h you get an energy.