Define Optical Density.
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Answers
Answer:
the degree to which a refractive medium retards transmitted rays of light.
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❍Define Optical Density.
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✐The optical density of a material is a logarithmic ratio of the falling radiation to the transmitted radiation through a material. It is also referred as a fraction of absorbed radiation at a particular wavelength.
The speed of light depends on the characteristics of the medium on which it is incident; the optical density of the medium influences the speed of light.
Optical density of the medium refers to the sluggish tendency of the atoms of a material to retain the energy absorbed from the electromagnetic wave in the form of vibrating electrons before being reemitted as an electromagnetic disturbance.
The refractive index of the material is an indicator of its optical density. Spectrometer is used to measure the optical density of a material.✍
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