Advertisements
Advertisements
प्रश्न
An object is placed (i) asymmetrically (ii) symmetrically, between two plane mirrors inclined at an angle of 50°. Find the number of images formed.
Advertisements
उत्तर
Angle between the mirrors, θ = 50o
Now, n = 360o / θo = 360o / 50o = 7.2 7, which is odd.
(i) When placed asymmetrically, number of images formed will be n, i.e. 7.
(ii) When placed symmetrically, number of images formed will be (n-1); i.e. 7-1 = 6 images
APPEARS IN
संबंधित प्रश्न
Explain the following term :
Plane mirror
Draw diagram/diagrams to show them.
What is meant by lateral inversion of an image in a plane mirror? Explain it with the help of a ray diagram.
An insect is sitting in front of a plane mirror at a distance 1 m from it.
(a) Where is the image of the insect formed?
An insect is sitting in front of a plane mirror at a distance 1 m from it.
(b) What is the distance between the insect and its image?
An optician while testing the eyes of a patient keeps a chart of letters 3 m behind the patient and asks him to see the letters on the image of chart formed in a plane mirror kept at distance 2 m in front of him. At what distance is the chart seen by the patient?
Draw a neat two ray diagram for the formation of images in two plane mirrors, when mirrors are at right angles to 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.
Select the correct option:
A ray of light is incident on a concave mirror. If it is parallel to principal axis, the reflected ray will:
