Planks constant law states that electromagnetic radiation from heated bodies is emitted in 1. Continious flow
2. Discrete units or quanta of energy
3. From all surfaces
4. In which wavelength is proportional to the frequency

What is the role of the ocular lens?

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.

Ascientist plants two rows of corn for experimentation.she put fertilizer on row 1 but does not put fertilizer on row 2 both rows receive the same amount of water and light intensity she checks the growth of the corn over 5 months what is the constant in this experiment