A hot body is placed in a closed room maintained at a lower temp Is the number of photons in the room increasing?It s found that yellow light does not eject photoelectrons from a metal. Is it advisable to try with orange light? with green light?It is found that photosynthesis starts in certain plants when exposed to the sunlight but it does not start if the plant is exposed only to infrared light.explain.

Kevin Nash , 11 Years ago

Grade upto college level