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प्रश्न
State whether convex lens has a real focus or a virtual focus.
उत्तर
A convex lens has a real focus because all the light rays actually pass through the focus.
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संबंधित प्रश्न
A 1 cm high object is placed at a distance of 2f from a convex lens. What is the height of the image formed?
Where should an object be placed in front of a convex lens so as to obtain its virtual, erect and magnified image?
Fill in the following blank with suitable word:
The image in a convex lens depends upon the distance of the ........... from the lens.
A convex lens of focal length 0.10 m is used to form a magnified image of an object of height 5 mm placed at a distance of 0.08 m from the lens. Calculate the position, nature and size of the image.
Find the nature, position and magnification of the images formed by a convex lens of focal length 0.20 m if the object is placed at a distance of:
0.15 m
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Complete the following sentence.
A long-sighted person cannot see ........... objects clearly. Long-sightedness can be corrected by using .............. lenses.
Distinguish between Concave lens and Convex lens.
