Advertisements
Advertisements
प्रश्न
State the mirror formula for the formation of total number of images formed in two plane mirrors, held at an angle.
Advertisements
उत्तर
If θ = Angle of inclination between two mirrors
n = number of images formed
Then n = `360^circ/theta - 1`
Numeral one is subtracted because of the loss of one image due to the overlapping of the images.
APPEARS IN
संबंधित प्रश्न
Write three characteristics of the image formed by a plane mirror?
Why is it difficult to read the image of the text of a page formed due to reflection by a plane mirror?
A man standing in front of a plane mirror finds his image at a distance 6 metre from himself. What is the distance of man from the mirror?
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 object is kept at 60 cm in front of a plane mirror. If the mirror is now moved 25 cm away from the object, how does the image shift from its previous position?
Two plane mirrors are placed making an angle θ° in between them. For an object placed in between the mirrors, if angle is gradually increased from 0° to 180°, how will the number of images change : increase, decrease or remain unchanged?
In the barber's shop, two plane mirrors are placed :
An object is placed (i) asymmetrically (ii) symmetrically, between two plane mirrors inclined at an angle of 50°. Find the number of images formed.
Prove geometrically that when plane mirror turns through a certain angle, the reflected ray turns through twice the angle.
Select the correct option:
If an incident ray passes through the centre of curvature of a spherical mirror, the reflected ray will:
