Advertisements
Advertisements
Question
Find the height of the image of a body of height 1.5m in a mirror with a magnification of 1.5.
Advertisements
Solution
Mirror formula is the relation between the focal length f of the mirror, the distance u of the object from the pole of the mirror, and the distance v of the image from the pole.
Mirror formula is
1/v +1/u = 1/f.
Size of body = 1.5 m.
Magnification of body = 1.5.
Magnification = height of image / height of object.
Height of image = magnification x height of object.
Height of image = 1.5 x 1.5= 2.25 m.
APPEARS IN
RELATED QUESTIONS
Explain the following term related to spherical lenses:- centres of curvature
Name the two types of spherical mirrors. What type of mirror is represented by the:
- back side of a shining steel spoon?
- front side of a shining steel spoon?
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of carbon paper for some time, a hole is burnt in the carbon paper.
- What is the nature of spherical mirror?
- Why is a hole burnt in the carbon paper?
- At which point of the spherical mirror the carbon paper is placed?
- What name is given to the distance between spherical mirror and carbon paper?
- What is the advantage of using a carbon paper rather than a white paper?
State the direction of incident ray which after reflection from a spherical mirror gets reflected along its own path. Give a reason.
What is a spherical mirror?
Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
Upto what maximum distance from the pole the image in a convex mirror can be obtained? what will be the location of object then ?
Select the correct option:
A mirror forms a virtual image (diminished) of an object, whatever be the position of object:
