Vegetable seeds purchased from the market germinate when exposed to light with wavelength 660 nm. When followed by a brief exposure to 730 nm they fail to germinate and will germinate when given an exposure of 660 nm. So we can conclude :
1
Exposure to 660 nm converts Pr → Pfr
2
Exposure to 730 nm converts Pr → Pfr
3
Germination is influenced by red light
4
Germination is not influenced by red light
5
Question Not Attempted