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प्रश्न
An image formed by a lens is erect. Such an image could be formed by a
विकल्प
convex lens provided the image is smaller than object.
concave lens provided the image is smaller than object.
concave lens provided the image is larger than object.
concave lens provided the image is of the same size.
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उत्तर
concave lens provided the image is smaller than object.
Explanation:
A concave lens provided the image is smaller than an object. The image of an object created by a concave lens is erect, virtual and diminished.
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संबंधित प्रश्न
Draw the following diagram in your answer book and show the formation of image of the object AB with the help of suitable rays:
Give two uses of concave mirrors. Explain why you would choose concave mirrors for these uses.
What would your image look like if you stood close to a large:
concave mirror?
Why does a beam of light when it enters glass at an angle? Why does it not bend if it inters the glass at right angles?
The image formed by a concave mirror is of the same size as the object, if the object is placed
In the following diagram. MM' is a concave mirror and AB is an object. Draw on your answer-sheet a ray diagram to show the formation of image of this object.
Consider the following properties of virtual images:
- cannot be projected on the screen
- are formed by both concave and convex lens
- are always erect
- are always inverted
The correct properties are:
Rays from Sun converge at a point 15 cm in front of a concave mirror. Where should an object be placed so that size of its image is equal to the size of the object?
State whether the following statement is True or False.
The sides of an object and its image formed by a concave mirror are always interchanged
A student wants to obtain an erect image of an object using a concave mirror of 10 cm focal length. What will be the distance of the object from mirror?
