Advertisements
Advertisements
Question
How is the focal length of a spherical mirror related to its radius of curvature?
Advertisements
Solution
Focal length is half the radius of curvature of a spherical mirror.
f = `"R"/2`
APPEARS IN
RELATED QUESTIONS
A student obtains a sharp image of the distant window (W) of the school laboratory on the screen (S) using the given concave mirror (M) to determine its focal length. Which of the following distances should he measure to get the focal length of the mirror?
Explain the following term related to spherical lenses:- optical centre
What type of image is formed:
- in a plane mirror?
- on a cinema screen?
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
At which point of the spherical mirror the carbon paper is placed?
What do you mean by the term dispersion?
Draw a ray diagram to show the formation of image by a concave mirror for the object beyond its centre of curvature. State three characteristics of the image.
Does the mirror mentioned in part (b) form real image for all locations of the object?
Choose the correct alternative and rewrite the following:
Mirror used by a dental surgeon is ..........................
The following figure shows a concave mirror with its pole (P), focus (F), and center of curvature (C). Draw a ray diagram to show the formation of the image of an object AB by the concave mirror.
