Define - image.

Define - virtual image.

Define the magnifying power of a compound microscope when the final image is formed at infinity . Why must both the objective and the eyepiece of a compound microscope has short focal lengths ? Explain.

Define linkage ?

Define - real image.

Let A = {0,1,2,3,4} and f:A to ZZ be defined by f(x) = x^2 -5x+2, find pre-images of (-2), 1 and 2.

Write two classifications of image.

An radius of curvature of a convex mirror is 40 cm and the size of the object is twice the size of the image. The image distance will be

Where in front of a concave mirror image of an extended object placed at infinity will be formed by the mirror? Mention one feature of the image.

Define epitope.