The absorption values for 1 mm of pyrex at 320 nm and 280 nm are 0.15 and 1.3respectively. What are the percent transmissions for 1 mm of Pyrex at these wavelengths

At 320 nm, %T = 70.79 %

At 280 nm, %T = 5.01 %

Explanation:

The absorption values and the percent transmission is linked with the expression bellow;

A = 2 - log %T

Where A is the Absorption value = 0.15 and 1.3 respectively;

%T is the percent transmission.

At 320 nm, A = 0.15

0.15 = 2 - log T

Log T = 2-0.15

Log T = 1.85

T = Anti log 1.85

T = 70.79 %

Therefore the percent transmission at 230 nm is 70.79 %

At 280 nm A = 1.3

1.3 = 2 - log T

Log T = 2 - 1.3

Log T = 0.7

T = anti log 0.7

T = 5.01 %

Therefore the percent transmission at 280 nm is 5.01 %