Physicshard · Past Paper
The magnifying power of a telescope can be increased by:
AIncreasing focal length of objective
BIncreasing focal length of eyepiece
CDecreasing focal length of objective
DNone
✓ Correct Answer: A — Increasing focal length of objective
M = fo / fe, so increasing fo or decreasing fe increases magnification.
Share this question
More from Physics
- When a ball is thrown upwards, the work done by the gravitational force is:
- When a body is dropped from a height, its potential energy is converted to:
- A body feels weightless in a satellite orbiting the Earth because:
- Which of the following is a scalar quantity?
- A generator produces a voltage of 240V and delivers a current of 50A. If the resistance of the transmission line is 0.5 Ohm, how much power is lost in the line?