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- #1

equation I(x) = I0 (0.8)^x , where x is the thickness of the glass in millimetres and I0 is the intensity of

light entering the glasses. How thick should the glass be so that it will block 25% of the light entering

the sunglasses?

- Thread starter fxacx
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- Thread starter
- #1

equation I(x) = I0 (0.8)^x , where x is the thickness of the glass in millimetres and I0 is the intensity of

light entering the glasses. How thick should the glass be so that it will block 25% of the light entering

the sunglasses?

- Mar 1, 2012

- 644

$0.75 I_0 = I_0 (0.8)^x$

equation I(x) = I0 (0.8)^x , where x is the thickness of the glass in millimetres and I0 is the intensity of

light entering the glasses. How thick should the glass be so that it will block 25% of the light entering

the sunglasses?

solve for x ...

- Jan 29, 2012

- 1,151