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प्रश्न
Complete the following sentence:
All the distances are measured from the .......... of a spherical mirror.
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उत्तर
All distances are measured from the pole of a spherical mirror.
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संबंधित प्रश्न
We can obtain an enlarged and erect image by a convex mirror.
Give one use each of a concave and a convex mirror.
What type of image is formed:
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?
A 2.0 cm tall object is placed 40 cm from a diverging lens of focal length 15 cm. Find the position and size of the image.
State the direction of incident ray which after reflection from a spherical mirror gets reflected along its own path. Give a reason.
How is the focal length of a spherical mirror related to its radius
Draw suitable diagrams to illustrate the action of (i) concave mirror and (ii) convex mirror on a beam of light incident parallel to the principal axis.
Does the mirror mentioned in part (b) form real image for all locations of the object?
For an incident ray directed towards centre of curvature of a spherical mirror the reflected ray:
Choose the correct alternative and rewrite the following:
Mirror used by a dental surgeon is ..........................
An object forms a virtual image which is 1/8th of the size of the object. If the object is placed at a distance of 40 cm from the convex mirror, calculate:
- the position of the image
- the focal length of the convex mirror.
What is the relation between focal length and radius of curvature of a concave mirror?
Is real image always inverted?
Define the term Normal.
Geometric centre of the spherical mirror is ______.
Name the type of mirror used in the following situation:
Solar furnace
Support your answer with reason.
Visit a nearby hospital. You can also visit the clinic of an ENT specialist, or a dentist. Request the doctor to show you the mirrors used for examining ear, nose, throat and teeth. Can you recognise the kind of mirror used in these instruments?
