photochemistry 2

Who discovered the Beer-Lambert's law?

• August Beer

• Michel Faraday

• Johann Heinrich Lambert

• Pierre Bougur

The intensity of a beam of mono chromatic light _____ with the increase in the concentration of the absorbing substance arithmetically.

• decrease exponentially

• increase exponentially

• decrease linearly

• increase linaerly

Grothus - Draper law is _____ in nature.

• purely qualitative

• quantitative

• qualitative and quantitative

• non-acceptable

Beer Lambert's law is applicable if

• temperature changes

• dilute solution is used

• non monochromatic radiation is used

• temperature varies linearly

• 0.4

• 0.5

• 0.6

• 0.7

The extent of photo chemical reaction upon the ____ of the light

• wavelength

• intensity

• both intensity and wavelength

• frequency

The co-efficient of absorption is represented by

_____ is also known as principle of quantum activation.

• Lambert's law

• Beer's law

• Stark -Einstein law

• Grothus Draper law

The same path length and concentration of the sample are directly proportional to the

• reflection of light

• refraction of light

• absorbance of light

• intensity of the light

Attenuation is the rate at which the signal light _____ in intensity.

• decrease

• increase

• gradually increase

• none of the above