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प्रश्न
A ............ mirror always forms a virtual image.
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उत्तर
A convex mirror always forms a virtual image.
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संबंधित प्रश्न
A mirror forms an image which is 30 cm from an object and twice its height.
(a) Where must the mirror be situated?
(b) What is the radius of curvature?
(c) Is the mirror convex or concave?
If you want to see an enlarged image of your face, state whether you will use a concave mirror or a convex mirror?
If a driver has one convex and one plane rear-view mirror, how would the images in each mirror appear different?
Whatever be the position of the object, the image formed by a mirror is virtual, erect and smaller than the object. The mirror then must be:
(a) plane
(b) concave
(c) convex
(d) either concave or convex
A man standing in front of a special mirror finds his image having a very small head, a fat body and legs of normal size. What is the shape of:
(a) top part of the mirror?
(b) middle part of the mirror?
(c) bottom part of the mirror?
Give reasons for your choice.
What is the effect on the size and position of the image of moving the object (i) towards the lens and (ii) away from the lens?
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 convex rearview mirror is preferred over a plane mirror in a car. Why?
If the object is at infinity in front of a convex mirror the image is formed at infinity.
Assertion: A real image cannot be produced by plane or convex mirror.
Reason: The focal length of a convex mirror is always taken as positive.
