When light from one source, x, strikes a metal, electrons are ejected. when light from another source, y, strikes the same metal, electrons are not ejected. which best explains why this occurs? light from source x has a higher intensity than light from source y. light from source x has a lower intensity than light from source y. photons of light from source x carry more energy than photons of light from source y. photons of light from source x carry less energy than photons of light from source y.

Photons of light from source X carry more energy than photons of light from source Y

Explanation: This is based on the fact that light is a electromagnetic radiation. When a photon hits an electron on a metal surface, the electron can be emitted. The emitted electrons are called photoelectrons.

E= energy

h= Planck's constant

= frequency of incident radiation

= threshold frequency

In order to eject an electron, the incident radiation must possess frequency greater than threshold frequency and a light with higher frequency has higher energy. Thus higher energy radiation can easily eject electrons.

Thus we can conclude Photons of light from source X carry more energy than photons of light from source Y

you cant move and you feel like someones pushing you down onto your bed it can feel like you want to get up but you just can't it can be extremely scary

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide