1 PHY103 The deviation for a small angle prism (this) is independent of the angle of incidence the angle of refraction. the angle of reflection the angle of emergrnce a TMA3
2 PHY103 A prism is a glass block triangular in shape all of the above none of the above c TMA3
3 PHY103 An object is place at a distance of 7cm from a lens and a virtual image which is magnified eight times is produced. What is the focal length of the lens and what is the image distance? 56 cm and -8 cm 8 cm and 56 cm 8 cm and 8 cm 8 cm and -56 cm d TMA3
4 PHY103 For a converging lens, a ray arriving parallel to the optic axis ____ appears to come from the principal focal point. passes through the principal focal point. passes through the "other" focal point. appears to come from the "other" focal point. b TMA3
5 PHY103 White light is a mixture of ____ 7 colours 9 colours 14 colours 15 colours a TMA3
6 PHY103 In a simple microscope lens used is __________. biconvex biconcave plano convex cylindrical a TMA3
7 PHY103 An object is placed 25 cm from a convex lens whose focal length is 10 cm. The image distance is ________ cm. 50 cm 16.66 cm 6.66 cm 10 cm b TMA3
8 PHY103 What is an object which has higher refractive index called in optics? Optically rarer Optically denser Optical density Refractive index b TMA3
9 PHY103 Convex lens focus a real, point sized image at focus, the object is placed At focus Between F and 2F At infinity At 2F c TMA3
10 PHY103 Convex lens always gives a real image if the object is situated beyond _______. optical centre centre of curvature radius of curvature focus d TMA3
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