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प्रश्न
What happens to the image when the object is moved away from the mirror gradually?
उत्तर
When the object is moved away from the mirror, the size of the image decreases.
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संबंधित प्रश्न
No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be ______.
Describe with a suitable diagram, how a convex mirror diverges a parallel beam of light rays. Mark clearly the pole, focus and centre of curvature of concave mirror in this diagram.
A diverging mirror is
(a) a plane mirror
(b) a convex mirror
(c) a concave mirror
(d) a shaving mirror
What type of mirror should be used as a shop security mirror?
Draw a labelled ray diagram to show the formation of image in a convex-mirror when the object is at infinity. Mark clearly the pole and focus of the mirror in the diagram.
An object is placed at the following distance from a convex lens of focal length 15 cm:
(a) 35 cm
(b) 30 cm
(c) 20 cm
(d) 10 cm
Which position of the object will produce:
(i) a magnified real image?
(ii) a magnified virtual image?
(iii) a diminished real image?
(iv) an image of same size as the object?
At the point of incidence, a line drawn at right angles to the surface, separating the two media, is called the normal.
To determine the focal length of a convex lens by obtaining a sharp image of a distant object we generally follow the following steps which are not in proper sequence.
(a) Hold the lens between the object and the screen
(B) Measure the distance between the lens and the screen
(C) Select a well lit distant object
(D) Place a screen opposite to the object on the lab table
(e) Adjust the position of the lens to form a sharp image
The correct sequence of these steps is:
(A) c, a, d, e, b
(B) c, d, a, e, b
(C) c, d, e, a, b
(D) c, a, e, d, b
Nature of the images formed by a convex mirror is _______.
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.
