Advertisements
Advertisements
प्रश्न
Two plane mirrors are placed making an angle θ in between them. Write an expression for the number of images formed of an object placed in between the mirrors. State the condition, if any.
Advertisements
उत्तर
If two mirrors make an angle with each other and object is placed in between the two mirrors, the number of images formed is n or (n - 1) depending upon n = 360o / o is odd or even.
(a) If n = 360o / o is odd,
(i) The number of images formed is n, when the object is placed asymmetrically between the mirrors.
(ii) The number of images formed is n-1, when the object is placed symmetrically between the mirrors.
(b) If n = 360o / o is even, the number of images is always n-1.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
The image formed by a plane mirror is erect and _____
The diagram in fig. shows an incident ray AO and the normal ON on a plane mirror. Draw the reflected ray. State the law you use to draw the direction of the reflected ray.
How is the position of an image related to the position of the object?
How many images are formed for a point object kept in between two plane mirrors at right angles to each other? Show them by drawing a ray diagram.
State two uses of a plane mirror.
By drawing a neat diagram define the following:
Mirror
Draw a neat two ray diagram for the formation of images in two plane mirrors, when mirrors are at facing each other.
What must be the minimum length of a plane mirror in which a person can see himself full length? Draw a diagram to justify your answer. Does the distance of a person from the mirror affect the above answer?
Write down the letters of the word ‘POLEX’ as seen in a plane mirror, held parallel to the plane of this paper.
