When light shines on a metal, electrons can be ejected from the surface of the metal in a phenomenon known as the photoelectric effect. ... The photoelectric effect. In the photoelectric effect, light waves (red wavy lines) hitting a metal surface cause electrons to be ejected from the metal.
Answer:
ionic solids
Explanation:
Ionic solids are a regular pattern of cations and anions that arrange themselves into a continuous solid network.
NaCl is composed of sodium ions and chloride ions that are held together by Coulumbic attractive forces to form a large crystal structure.
Such ionic solids have a very high melting point and do not conduct electricity in the sold state. However, the molten substance or a solution of the substance conducts electricity.
Answer:
Third person
Explanation:
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Answer:
In many plants species , a plant have different patterns on their leaves. It is because of mutations which occurs due to change in the DNA or genetic makeup because of environmental factors such as UV light and other substances.
Explanation:
Mutation refers to the sudden change which occurs in the genetic makeup of the cell due to the exposure to harmful radiations such as UV radiation and gamma radiation. In Plant cells, mutation also occurs due to the external environment. Sometimes it occurs naturally and sometimes due to certain radiation or smoke.
