<prompt> Hlalosa mohopolo oa phello ea photoelectrical.nan  <response>: Instruction in English: Explain the concept of photoelectrical effect. . Response in English: The photoelectric effect is a phenomenon wherein electrons are emitted from the surface of a material, typically a metal, when it is exposed to light or other electromagnetic radiation. It has been observed that this effect is not dependent on the intensity of light but rather on the frequency or energy of the light. The energy of the emitted electrons also increases with an increase in the frequency of incident light.This phenomenon is explained by the quantum theory of light, which theorizes that light is composed of tiny packets of energy called photons. When these photons collide with the electrons on the surface of the metal, they transfer their energy to the electrons, providing the necessary energy for them to be released from the surface.The photoelectric effect provided the first conclusive evidence of the particle nature of light and helped to establish the quantum theory. The phenomenon has many practical applications, including the functioning of photovoltaic cells or solar cells, which convert light energy into electricity. . Response in Sesotho: Phello ea photoelectric ke ketsahalo eo ho eona lielektrone li hlahisoang holima thepa, hangata e le tšepe, ha e pepesehetse khanya kapa mahlaseli a mang a motlakase. Ho nile ha hlokomeloa hore phello ena ha ea itšetleha ka matla a khanya empa ho e-na le hoo e itšetlehile ka makhetlo kapa matla a khanya. Matla a lielektrone tse hlahisoang a boetse a eketseha ka keketseho ea makhetlo a khanya ea ketsahalo. Ketsahalo ena e hlalosoa ke khopolo ea quantum ea leseli, e bolelang hore leseli le entsoe ka liphutheloana tse nyenyane tsa matla tse bitsoang photon. Ha li-photon tsena li thulana le lielektrone tse holima tšepe, li fetisetsa matla a tsona ho lielektrone, li fana ka matla a hlokahalang hore li lokolloe holimo. Phello ea photoelectric e fane ka bopaki ba pele bo tiileng ba tlhaho ea leseli le ho thusa ho theha khopolo ea quantum. Ketsahalo ena e na le litsebetso tse ngata tse sebetsang, ho kenyelletsa le tsebetso ea lisele tsa photovoltaic kapa lisele tsa letsatsi, tse fetolang matla a khanya ho ba motlakase. 