Question
Define the term Focus of a concave mirror.
✓
Answer
The focus of a concave mirror is a point on the principal axis of the mirror, where all the rays travelling parallel to the principal axis and close to it after reflection from the mirror converge to that point.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
What are hot spots? How can you extract energy from a hot spot, if it does not come in contact with underground water?
The time period of a simple pendulum is $2 s$. What is its frequency? What name is given to such a pedulum ?
→What are the three requirements for selecting a unit of a physical quantity?
Define linear magnification produced by a mirror?
What can you conclude if the speed-time graph of a body is a curve moving upwards starting from the origin?
Equal volumes of alcohol and mercury are heated uniformly in identical containers separately from 10°C to 50°C. Will both the liquids occupy the same volume? Give reason.
A pendulum of length 36 cm has time period 1.2 s . Find the time period of another pendulum, whose length is 81 cm .
Study the following diagrams and write down your observations.
State three important precautions which must be followed while plotting points on a graph.
Draw a neat and labeled diagram of a Six's maximum and minimum thermometer. Explain briefly, the working of this thermometer. Give a use of this thermometer.