Q. 265.0( 1 Vote )
Study the ray diagram given below and answer the following Question s:
i. State the type of lens used in the figure.
ii. List two properties of the image formed.
iii. In which position of the object will the magnification be-1?
A student obtains a blurred image of an object on a screen by using a concave mirror. In order to obtain a sharp image on the screen, in which direction he will have to shift the mirror?
i. The type of the lens used in the figure is a convex lens.
ii. The image is real, inverted and magnified.
iii. When the object is placed at the twice distance of focal length then the magnification produced is -1.
When obtaining an image of an object (if the object is distant), in order to get a sharp image, the mirror should be moved towards the screen in order to get a sharp image. This is so because as the mirror is brought near to the screen, the screen comes near the focus of the mirror thus a sharp image is obtained.
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