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
Fill in the blank
The image formed by a plane mirror is erect and _____
What is meant by lateral inversion of an image in a plane mirror? Explain it with the help of a ray diagram.
Why is it difficult to read the image of the text of a page formed due to reflection by a plane mirror?
The image formed by a plane mirror is :
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?
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.
Explain the following term:
Normal Draw
diagram/diagrams to show them.
Prove geometrically that when plane mirror turns through a certain angle, the reflected ray turns through twice the angle.
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:
