A A converging lens has focal length 5 cm. An object is placed 3 cm from the centre of the
lens, on the principal axis. Draw an accurate
ray diagram to represent this.
b Use your diagram to determine the distance of
the virtual image formed from the lens.

Drag the tiles to the correct locations. each tile can be used more than once, but not all tiles will be used. one or more locations will remain empty. nitrosyl fluoride has the chemical formula nof nitrogen has five valence electrons, oxygen has six, and fluorine has seven. complete the lewis structure for this covalent compound. f n = = = . : : 0 : reset next um. all rights reserved us 2