In an experiment to show that oxygen is a by product of photosynthesis what is the effect on the rate - Biology -

Question

In an experiment to show that oxygen is a by product of
photosynthesis what is the effect on the rate of bubble formation
if light source is changed from red to green?

Mushtaq Ahmed · Accepted Answer

Place an aquatic plant (hydrilla) in a beaker filled with water
Cover the plant with a transparent funnel Then, invert a test tube
over the open end of the funnel

While inverting the test tube, make sure it does not contain any
air bubbles Place this apparatus in sunlight and observe the
changes

It will be observed that after sometime, air bubbles (O2)
emerge in the test tube

Photosynthesis occurs at higher rate in the blue and red regions of
the spectrum If spectrum is shifted from red to green, the rate of
photosynthesis will decrease that will in turn reduce production of
oxygen gas

In an experiment to show that oxygen is a by product of photosynthesis what is the effect on the rate of bubble formation if light source is changed from red to green?