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Which diagram shows image formation of a...

Which diagram shows image formation of an object on a screen by a converging lens?

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Draw a ray diagram to show image formation by a concave lens

Draw a ray diagram to show image formation by a concave lens.

Draw a ray diagram to show the formation of a real magnified image by a convex lens. (In your sketch the position of object and image with respect to the principal focus of lens should be shown (clearly).

a) Construct ray diagrams to illustrate the formation of a virtual image using i) a converging lens, and ii) a diverging lens. b) What is the difference between the two images formed above?

a) 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 (i) converging, and ii) diverging. b) State one practical use each of convex mirror, concave mirror, convex lens and concave lens.

A student focuses the image of a well illuminated distant object on a screen using a convex lens. After that the gradually moves the object towards the lens and each time focuses its image on the screen by adjucting the lens. (a) In which direction -towards the screen or away from the screen, does he move the lens ? (b)What happens to the size of the image-does it decrease or increase ? (c) What happens to the image on the screen when he moves the object very close to the lens ?

(a) Draw a ray diagram to show the formation of image of an object placed between infinity and optical centre of a concave lens. (b) A concave lens of focal length 15 cm forms an image 10 cm from the lens. Calculate (i) the object distance, (ii) the nature and magnification of the image formed.

Make lablled ray diagrams to ollustrate the formation of : (a) a real image by a converging mirror. (b) a virtual image by a converging mirror. Mark clearly the pole, focus, centre of curvature and object in each case.

Draw ray diagram showing the image formation by a concave lens when an object is placed at the focus of the lens.

Draw ray diagrams showing the image formation by a concave lens when an object is placed (a) between focus and twice the focal length of the lens (b) beyond twice the focal length of the lens

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