Advertisements
Advertisements
Question
An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Concave mirror
Advertisements
Solution
Focal length =25 cm.
Object distance = 20 cm.
Height o f object = 10 cm.

Image is virtual, erect, and magnified.
APPEARS IN
RELATED QUESTIONS
What happens when a ray of light falls normally (or perpendiculary) on the surface of a plane mirror?
Name the two types of spherical mirrors. What type of mirror is represented by the:
front side of a shining steel spoon?
A student obtained a sharp image of a burning candle, placed at the farther end of a laboratory table, on a screen using a concave mirror. For getting better value of focal length of the mirror, the subject teacher suggested him for focusing a well illuminated distant object. What should the student do?
(A) He should move the mirror away from the screen.
(B) He should move the mirror slightly towards the screen.
(C) He should move the mirror as well as the screen towards the newly selected object.
(D) He should move only the screen towards the newly selected object.
What is a spherical mirror?
The focal length of a concave mirror is 10 cm. Find its radius of curvature.
The magnification for a mirror is -3. How are u and v related?
Define the following term in relation to concave mirror.
Principal axis
What is the relationship between the focal length and radius of curvature?
If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
Name the two types of spherical mirrors.
