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5 ( a) ) An object of height 2.0 cm is placed 3.0 cm in front of a concave mirror. If the height of image is 5.0 cm and
Posted: Wed May 18, 2022 6:45 am
by answerhappygod
- 5 A An Object Of Height 2 0 Cm Is Placed 3 0 Cm In Front Of A Concave Mirror If The Height Of Image Is 5 0 Cm And 1 (162.31 KiB) Viewed 55 times
5 ( a) ) An object of height 2.0 cm is placed 3.0 cm in front of a concave mirror. If the height of image is 5.0 cm and virtual image is formed, (i) sketch and label a ray diagram to show the formation of the image. (ii) calculate the focal length of the mirror. [7 marks] (b) A convex mirror has a focal length of 8.0 cm. If the image is virtual and the image distance is one third of the object distance, calculate the (i) object distance. magnification of the image. [4 marks] (c) a The image of a 20 cents coin has twice the diameter when a convex lens is placed 2.84 cm from it. Calculate the focal length of the lens. [3 marks]