Question

Assertion :Photosynthesis and vision are the phenomenon of visible light. Reason: The visible light is absorbed by small particles containing chlorophylls as well as the retina of the eye.

• A. Both A and R are true but R is the correct explanation of A
• B. Both A and R are true but R is not a correct explanation of A
• C. A is true but R is false
• D. A is false but R is true

Answer 1

The correct option is A Both A and R are true but R is the correct explanation of A

• Light energy enters the process of photosynthesis when pigments absorb the light. In plants, pigment molecules absorb only visible light for photosynthesis. Chlorophyll is vital for photosynthesis, which allows plants to absorb energy from light.
  
• The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light. The retina is the light-sensitive tissue lining the back of our eye. Light rays are focused onto the retina through our cornea, pupil and lens. The retina converts the light rays into impulses that travel through the optic nerve to our brain, where they are interpreted as the images we see.
  

So, the correct answer is 'Both A and R are true but R is the correct explanation of A'.