1. A sample gives an absorbance of 1 at a specific wavelength, what is the transmittance...

Question

Question

1. A sample gives an absorbance of 1 at a specific wavelength, what is the transmittance and what is the percentage of light

science chemistry

Answer 1

Answer #1

When an absorbance of a sample is 1 at specific wavelength, the transmittance is

Transmittance

Definition for transmittance is the ratio of the incident light on a body to that, light passes through the body.

Transmittance is calculated by

Transmittance = antilog (2 - absorbance)

= antilog ( 2 - 1)

= antilog (1)

= 10

Transmittance = 10%

Percentage of light absorbed by the sample

The Percentage of light absorbed by the sample is 90%, when the absorbance is 1. It means the Intensity will be 10%.

On the other hand I_o / I is 100 /10 = 10

By taking logarithm of 10

log₁₀ = 1.

Answer 2

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