Question:
A metal surface is exposed to solar radiations:
A metal surface is exposed to solar radiations:
Updated On: Aug 15, 2022
- the emitted electrons have energy less than a maximum value of energy depending upon frequency of incident radiations
- the emitted electrons have energy less than maximum value of energy depending . upon intensity of incident radiations
- the emitted electrons have zero energy
- the emitted electrons have energy equal to energy of photons of incident light
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The Correct Option is A
Solution and Explanation
A metal surface is exposed to solar radiations, the emitted electrons have energy less than maximum value of energy depending upon frequency of incident radiations.
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Concepts Used:
Radiation
Radiation is the energy or particles from a source that travels from one media to other. It travels through a medium after its emission from a source and is absorbed by matter.
Forms of Radiation:
- Particle Radiation includes the alpha (α), beta (β), and neutron radiations.
- Gravitational Radiation includes the radiation that takes the form of gravitational waves or as ripples in the curvature of space-time.
- Acoustic Radiation includes ultrasound, seismic and sound waves.
- Electromagnetic Radiation is inclusive of radio waves, gamma radiation (γ), x-rays, and visible light.
Types of Radiation:
- Ionizing Radiation - It carries more than 10 eV, that is enough to ionize atoms and molecules and break chemical bonds.
- Non-ionizing Radiation – It consists of alpha particles, beta particles, and gamma particles, whereas ionizing radiation consists of microwave radiation, infrared radiation and radio waves.
Read More: Types of Radiation