Advertisements
Advertisements
प्रश्न
Draw a ray diagram to show the formation of image by a concave mirror for an object placed between its pole and focus. State three characteristics of the image.
Advertisements
उत्तर
Ray diagram showing the formation of an image by a concave mirror for an object placed between its pole and focus:
When the object is placed between focus F and pole P, the image is formed behind the mirror.
The image so formed is virtual, upright and magnified.
APPEARS IN
संबंधित प्रश्न
A 4 cm tall object is placed on the principal axis of a convex lens. The distance of the object from the optical centre of the lens is 12 cm and its sharp image is formed at a distance of 24 cm from it on a screen on the other side of the lens. If the object is now moved a little away from the lens, in which way (towards the lens or away from the lens) will he have to move the screen to get a sharp image of the object on it again? How will the magnification of the image be affected?
What is a virtual image?
A diverging lens is used in ______.
A student obtained on a screen the sharp image of a candle flame placed at the farther end of laboratory table using a concave mirror. For getting better value of focal length of the mirror, the teacher suggested to him to focus the sun. What should the student do?
(A) Should move the mirror away from the screen.
(B) Should move the mirror towards the screen.
(C) Should move the mirror and screen both towards the sun.
(D) Should move only the screen towards the sun.
Figure shows a concave mirror with its pole at P, focus F and centre of curvature C. Draw ray diagram to show the formation of image of an object OA.
Answer the following question:
Distinguish between the convex mirror and the concave mirror.
Define linear magnification produced by a mirror?
If the real image of a candle flame formed by a lens is three times the size of the flame and the distance between lens and image is 80 cm, at what distance should the candle be placed from the lens?
A spherical mirror whose reflecting surface is curved outwards is called ______ mirror.
