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प्रश्न
A converging lens is used to produce an image of an object on a screen,object on a screen. What change is needed for the image to be formed nearer to the lens?
(a) increase the focal length of the lens
(b) insert a diverging lens between the lens and the screen
(c) increase the distance of the object from the lens
(d) move the object closer to the lens
उत्तर
Increase the distance of the object from the lens
As the object moves away from the lens, the image gets closer to the lens.
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संबंधित प्रश्न
A converging lens of focal length 5 cm is placed at a distance of 20 cm from a screen. How far from the lens should an object be placed so as to form its real image on the screen?
Fill in the following blank with suitable word:
A convex lens .................. rays of light, whereas a concave lens .................. rays of light.
An object lies at a distance of 2f from a concave lens of focal length f. Draw a ray-diagram to illustrate the image formation.
Which type of lens is
a diverging lens? Explain your answer with diagrams.
An object is placed 10 cm from a lens of focal length 5 cm. Draw the ray diagrams to show the formation of image if the lens is converging,
Construct ray diagrams to illustrate the formation of a virtual image using a converging lens,
What type of lens is used to correct
myopia?
Convex lens : converging : : concave lens : _______
Convex magnifying glass is called divergent magnifying glass and concave magnifying glass is called converging magnifying glass.
