Question

progenies.
Explain giving reasons the bending of the shoot tip of a plant towards light source coming
from one side of the plant.​

Answer 1

Explanation:

here it is why shoot tip of plant bends towards light source

Answer 2

Answer:

the ability of a medium to reflect light is also expressed in terms of its optical density. optical density has a definite connotation. it is not the same as the mass density. we have been using the terms rarer medium and denser medium in this. it actually means optically rarer medium and optically denser medium, respectively. when can we say that a medium is optically denser than the other?in comparing two media the one with the larger refractive index is optically denser medium than. The other medium of lower refractive index is optically rarer. the speed of light is higher in the rare medium. does a Ray of light travelling from a rare medium to denser medium slows down and bends towards the normal. when it travels from a denser medium to rarer medium its speeds up and bands away from the normal.