Which energy is possessed by light bulb? kinetic or potential?

What are the dimensions of the cross section that passes through the points a, f, g, and d?

What caused magnetic fields? what happens if you keep breaking a magnet in two until you reach a single atom?

12. ritu obtained a distinct image of a distant tree on the screen with the of a concave mirror.to find the focal length of the mirror she has to measure the distance between: (a) mirror and the tree. (b) screen and the tree.(c) mirror and the screen. (d) mirror and tree as well as between screen and the tree.