Physics

Problem

A compound microscope has a tube length of

16\,\text{cm}

. It employs an objective of focal length

0.40\,\text{cm}

and an eyepiece of focal length

2.0\,\text{cm}

. What is its magnifying power when adjusted for a final image at infinity? a) 320 b) 500 c) 540 d) 250