Light Spectrum | MCQs

Explanation

Note: according to Fpsc answer key  the correct  ans is green light

Since the maximum absorption by chlorophyll occurs in red light.

It is the most effective wavelength for photosynthesis.

Chlorophyll strongly absorbs red light.

Thus it is effective at photosynthesis.

All important questions and Information Related to 'Photosynthesis"

Photosynthesis takes place in the presence of the following light Only in sunlight from the sun

Photosynthesis takes place faster in white light

Photosynthesis occurs more in blue and red light rays

Photosynthesis occurs more in blue and red light rays and less, or not at all, in green light rays.

ND2-03-2023

Explanation

The separation of visible light into its different colours is known as dispersion.

When white light passes through a prism, it splits into 7 colors, forming a spectrum known as a rainbow:

1. Red
2. Orange
3. Yellow
4. Green
5. Blue
6. Indigo
7. Violet

Explanation

Answer:

Plants look green in sunlight, so they should look black or gray in red light because they don't need to reflect green wavelengths to look green.

Explanation

Sunlight is white but appears yellow due to light scattering in the Earth's atmosphere.