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:
Convex mirror
Advertisements
Solution
Focal length =25 cm.
Object distance = 20 cm.
Height o f object = 10 cm.
The image is virtual, erect, and diminished.
APPEARS IN
RELATED QUESTIONS
State the direction of incident ray which after reflection from a spherical mirror gets reflected along its own path. Give a reason.
Mention the types of mirrors used as (i) rear view mirrors, (ii) shaving mirrors. List two reasons to justify your answers in each case.
State two uses of a concave mirror.
Define the term Aperture.
AB is the object, A1B1 is its image. MM' is the position of the mirror. Complete the ray diagram and find the position of the center of curvature and focus of the mirror. Also, measure the focal length.
Define the term Normal.
A student traces the path of a ray of light passing through a rectangular slab.
 |
 |
 |
 |
For measuring the angle of incidence, he must position the protractor in the manner shown in the figure:
What is the focal length (f) of a mirror?
