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प्रश्न
State two positions in which a concave mirror produces a magnified image of a given object. List two differences between the two images.
List two possible ways in which a concave mirror can produce a magnified image of an object placed in front of it. State the difference, if any, between these two images.
उत्तर
(i) The two cases in which a concave mirror produces a magnified image of the given object are when the object is placed between
(a) focus (F) and centre of curvature (C)
(b) focus (F) and pole (P)
(ii) Two differences between these images are that the image formed in case (a) is real and inverted, whereas the image formed in case (b) is virtual and erect.
संबंधित प्रश्न
Draw the following diagram in your answer book and show the formation of image with the help of suitable rays:
An object 3 cm high is placed at a distance of 8 cm from a concave mirror which produces a virtual image 4.5 cm high:
(i) What is the focal length of the mirror?
(ii) What is the position of image?
(iii) Draw a ray-diagram to show the formation of image.
Name the mirror which can give:
an erect and enlarged image of an object.
Which of the following are concave mirrors and which convex mirrors?
The image formed by a concave mirror is of the same size as the object, if the object is placed
Draw a ray diagram to show the formation of image of an object placed on the principal axis of a convex mirror. State the position, size and nature of the image. What happens to the image as the object is moved away from the mirror?
In the following diagram. MM' is a concave mirror and AB is an object. Draw on your answer-sheet a ray diagram to show the formation of image of this object.
A student has focused the image of a candle flame on a white screen using a concave mirror. The situation is as given below:
Length of the flame = 1.5 cm
Distance of flame from the mirror = 18 cm
If the flame is perpendicular to the principal axis of the mirror, then calculate the following:
- Distance of the image from the mirror
- Length of the image
If the distance between the mirror and the flame is reduced to 10 cm, then what would be observed on the screen? Draw ray diagram to justify your answer for this situation.
Which of the following can make a parallel beam of light when light from a point source is incident on it?
Which of the following mirror is used by a dentist to examine a small cavity in a patient’s teeth?
