Recent content by Dipra Irham

a prism is supposed to scatter light rays and separate it into rainbow,then why in a prism periscope the prism send light rays to a particular direction instead of scattering?

Thanks for your help.

I have got a question in my physics book.The question goes like that: (Let's suppose the weight of the gold crown of Archimedes is 10 kg in air and 9.4 kg when immersed in water.What is the density of the crown? ) The solution says: If the volume of the crown is V and density is p then, Vp=10 kg...