Question

what is the unit of planck's constant

Answer 1

hi mate


the SI unit is joule

Answer 2

........Now you can get your brainliest answer......

Planck's constant, symbolized h, relates the energy in one quantum (photon) of electromagnetic radiation to the frequency of that radiation. 

In the International System of units (SI), the constant is equal to approximately 6.626176 x 10-34 joule-seconds. In the centimeter-gram-second (cgs) or small-unit metric system, it is equal to approximately 6.626176 x 10-27 erg-seconds.

The Planck constant (Planck's constant) links the amount of energy a photon carries with the frequency of its electromagnetic wave. It is named after the physicist Max Planck. It is an important quantity in quantum physics.

The Planck constant has dimensions of physical action: energy multiplied by time, or momentum multiplied by distance. In SI units, the Planck constant is expressed in jouleseconds (J⋅s) or (N⋅m⋅s) or (kg⋅m2⋅s−1). The symbols are defined here.

In SI Units the Planck constant is about 6.62606×10−34 J·s.[1] Scientists have used this quantity to calculate measurements like the Planck length and the Planck time.

........ Be always brainliest.......
........... Thanks.........