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प्रश्न
An object is placed at a long distance in front of a convex mirror of radius of curvature 30 cm. State the position of its image.
उत्तर
When an object is placed in front of a convex mirror, the image is always formed behind the latter, and is virtual, erect and smaller than the object.
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संबंधित प्रश्न
A diverging mirror is
(a) a plane mirror
(b) a convex mirror
(c) a concave mirror
(d) a shaving mirror
Which type of mirror has:
positive focal length?
An object is placed at a distance of 10 cm from a convex mirror of focal length 5 cm.
(a) Draw a ray-diagram showing the formation image
(b) State two characteristics of the image formed
(c) Calculate the distance of the image from mirror.
Write true or false
At the point of incidence, a line drawn at right angles to the surface, separating the two media, is called the normal.
A ray of light passing through centre of curvature of a spherical mirror, after reflection
A convex mirror is used
Numerical problem.
A concave mirror produces three times magnified real image of an object placed at 7 cm in front of it. Where is the image located? (Ans: 21 cm in front of the mirror)
The distance between an object and a convex lens is changing. It is noticed that the size of the image formed on a screen is decreasing. Is the object moving in a direction towards the lens or away from it?
The most common example of a convex mirror is the make – up mirror.
Assertion: Convex mirrors are used as a rearview mirror in vehicles for observing traffic at our back.
Reason: A convex mirror has a much larger field of view.
