Well, almost any website can be, but if you are meaning for money, then google. if you are meaning reliable, then look for something with .org, its history and stuff
The part that moves are called anti-nodes. The stationary pars are nodes
The energy absorbed by photon is 1.24 eV.
This is the perfect answer.
Answer:
The impression of the image on the retina lasts for about 1/16th of a second after the removal of the object. If a burning stick of incense is revolved at a rate of more than sixteen revolutions per second, we see a circle of red light due to persistence of vision.
Explanation:
It confirmed medeleeve's hypothesis (prediction) and showed the use of his table
