Physicseasy · Past Paper
The distance between the pole and the principal focus of a spherical mirror is called:
ARadius of curvature
BFocal length
CAperture
DObject distance
✓ Correct Answer: B — Focal length
Focal length (f) is the distance from the pole to the principal focus.
Share this question
More from Physics
- In a stationary wave, the points of zero amplitude are called:
- What is the focal length of a lens with power -4.0 D?
- Archimedes' principle states that the upthrust is equal to:
- Average speed is calculated as:
- A ball is dropped from a tower of height h. It takes T seconds to reach the ground. Where is the ball at time T/2?