Advertisements
Advertisements
Question
State the mirror formula for the formation of total number of images formed in two plane mirrors, held at an angle.
Advertisements
Solution
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
RELATED QUESTIONS
Draw a diagram to show the reflection of a light ray incident normally on a plane mirror.
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.
An object is placed (i) asymmetrically (ii) symmetrically, between two plane mirrors inclined at an angle of 50°. Find the number of images formed.
Draw a neat two ray diagram for the formation of images in two plane mirrors, when mirrors are at facing each other.
What should be the minimum size of a plane mirror, so that a person 182 cm high can see himself completely?
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?
Parallel rays are incident:
- on regular surface and
- on irregular surface. In what respect do reflected rays in (1) differ from those of (2)?
Select the correct option:
In case of concave mirror, the minimum distance between an object and its real image is:
Identify the following kind of beam of light.
