So, we observe that in the discharge tube experiment when a very light paddle wheel is placed in the path of cathode rays, it starts turning due to the particle nature of the rays.
My question is if the same paddle wheel is placed in light, why does it not start turning ? Light is also of particulate nature (in some cases- made up of photons). Is it due to the less mass of photons? Thanks.
Thank you, particularly @Poutnik for giving me such great answers.
I just read an article while researching that the paddle wheel didn't turn because of the transfer of momentum by the cathode rays but due to changes in pressure of the gas around the paddles due to heating, which is much same as that to Crookes radiometer. This fact was discovered later, much later after the experiment. This solves my problem that even in the cathode ray experiment, it wasn't the trasfer of momentum that moved the paddles, because the actual pressure of the rays is quite weak (again as suggested by @Poutnik). And since the ray can't turn the paddles, the light no way can. And yes, I calculated the momentum of sunlight and that transferred by cathode rays to see for myself that movement of the paddle by each of these is not possible.
Thanks everyone once again.