Mam please tell me that which of the following wavelength of light is more absorbed by plant for photosynthesis . One is red and another is blue .please tell me mam.

Blue light is absorbed not only by chlorophyll, but also by carotenoids, and some carotenoids are not in the chloroplasts. Aborbs infrared and red light (540nm-630nm) and it is for this reason that photosynthesis is highest under red light.
Though blue light maybe absorbed the highest.