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प्रश्न
The letters on the front of an ambulance are written laterally inverted like 
. Give reason.
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उत्तर
The letters on the front of an ambulance are written laterally inverted, so the driver of the vehicle moving ahead of the ambulance reads these words laterally inverted as AMBULANCE in his rearview mirror and gives side to pass the ambulance first.
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संबंधित प्रश्न
What is the relation between the focal length and radius of curvature of a spherical mirror (concave mirror of convex mirror)? Calculate the focal length of a spherical mirror whose radius of curvature is 25 cm.
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
At which point of the spherical mirror the carbon paper is placed?
State two uses of a concave mirror.
Define the following term in relation to concave mirror.
Principal focus
Define the term Aperture.
An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Convex mirror
Which of the following has curved reflecting surface?
A ray of light is incident towards a plane mirror at an angle of 30° with the mirror surface. What will be the angle of reflection?
What is “aperture”?
