Question

Calculate the percentage of the incident radiation absorbed by a sample with an absorbance of •1 ??

Answer 1

Answer:
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Answer 2

Answer:

The percentage of radiation absorbed = (100 - 1)% = 99%

Explanation:

We know that the absorbance rate is given by :

Absorbance, a  = 2 - log₁₀ (t)

where, t =  the percentage of the radiation transmitted.

Now, it is given to us that :

a = 2

Therefore, 2 = 2 - log₁₀ (t)

or, log₁₀ (t) = 0

or, t = 10⁰ = 1

hence the percentage of radiation transmitted  = 1%

Therefore, the percentage of radiation absorbed = (100 - 1)% = 99%

Rate of absorbance :

It is basically defined as the logarithmic ratio if the incident radiated power to that of the transmitted radiant power in samples or through samples.

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