Cbse class 12 Energy of photoelectrons emitted from a photosensitive light surface is 1.56eV. If its threshold wavelength is 2500Å find the wavelength of incident light.

Does baby oil have a high or low velocity?

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

The least penetrating form of radiation is