Absorption of Light
Physics ⇒ Light and Optics
Absorption of Light starts at 9 and continues till grade 12.
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A material has an absorption coefficient of 1.0 cm-1. What thickness is required to reduce the intensity of light to 10% of its original value?
A solution absorbs 80% of incident light. What percentage of light is transmitted?
A student observes that a red solution appears darker when viewed through a longer path length. Explain why.
A student shines a beam of white light through a colored solution and observes that the transmitted light is green. What can be inferred about the absorption of the solution?
Describe how the thickness of a material affects the amount of light absorbed.
Describe the difference between absorption and transmission of light.
Describe what happens to the energy of light that is absorbed by a material.
Explain why a black car heats up more quickly in sunlight than a white car.
Explain why leaves appear green in sunlight.
Explain why sunglasses are often tinted to absorb ultraviolet light.
Explain why ultraviolet light is more strongly absorbed by the skin than visible light.
If a material has a high absorption coefficient, what does this indicate about its ability to absorb light?
If a material transmits 10% of incident light, what percentage is absorbed if no light is reflected?
If a solution has an absorption coefficient of 0.5 cm-1 and a thickness of 2 cm, what fraction of the incident light intensity remains after passing through the solution?
The Beer-Lambert Law is mathematically expressed as I = I0e-αx. What does 'α' represent in this equation?
The intensity of light after passing through a material of thickness x is given by I = I0e-αx. If I0 = 100 units, α = 0.2 cm-1, and x = 5 cm, calculate the transmitted intensity.
What is meant by the absorption of light in physics?
