If I light a torch and hold it against a wall, will the wall feel any force? If yes, what factors does the magnitude of such a force depend upon? (Area of the wall covered by the beam, intensity of light etc).
If the answer for the above question is yes, how will energy be conserved in this process? If the light is incident on a movable object (say a toy car),light would be reflected back and also some work would be done (the car would move a little).
light energy -> light energy + work ???
Will the reflected light be reduced in intensity in order to conserve energy?
Can this force be explained using wave nature of light?
P.S I am a programmer and not very good at physics. Sorry if the question sounds stupid. Thanks for any help in advance!