Question

Figure (a) below snows the image observed at the near point of eye by a boy through a simple microscope. Eye focused on near point.

1. Draw ray diagram which shows the image formation at infinity, so that the boy can observe it with a relaxed eye.

2. Distinguish between linear magnification and angular magnification.

Answer 1

1.

2. Linear magnification is ratio of image height to object height. Angular magnifications is the ratio of angle subtended by the image and the object on the eye when both are at the least distance of distinct vision.