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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
Explain the following term related to spherical lenses:- principal axis
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of carbon paper for some time, a hole is burnt in the carbon paper.
- What is the nature of spherical mirror?
- Why is a hole burnt in the carbon paper?
- At which point of the spherical mirror the carbon paper is placed?
- What name is given to the distance between spherical mirror and carbon paper?
- What is the advantage of using a carbon paper rather than a white paper?
Name the kind of mirror used to obtain:
A real and diminished image.
State two uses of a concave mirror.
The image formed by a convex mirror is
An object 5 cm high is placed at a distance 60 cm in front of a concave mirror of focal length 10 cm. Find the position and size of the image.
Define the term principal focus in case of convex mirror. Draw a convex mirror and show its principal focus and focal length clearly.
Draw a ray diagram to show that a convex mirror has a wider field of view.
