Question

Green plants absorbs sunlight to power photosynthesis, the chemical synthesis of food from water and carbon dioxide. The compound responsible for light absorption and the color of plants, chlorophyll, strongly absorbs light with a wavelength of 453.nm. Calculate the frequency of this light.

Answer 1

Answer: The frequency of this light is
`6.62* 10^(14)s^(-1)`

Step-by-step explanation:

To calculate the wavelength of light, we use the equation:

`\lambda=(c)/(\\u)`

where,

`\lambda` = wavelength of the light =
`453nm=453* 10^(-9)m`

c = speed of light =
`3.0* 10^8m/s`

`\\u` = frequency of light = ?

`\\u=(3.0* 10^8m/s)/(453* 10^(-9)m)=6.62* 10^(14)s^(-1)`

The frequency of this light is
`6.62* 10^(14)s^(-1)`