a pin ab length 2 cm is kept perpendicular on the axis of a convex lens between 18 and 20 cm. focal length of the lens is 10cm,then magnification produced for the image of the pin ab is
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Write a letter of application to the principal of your school requesting for 15 days leave. Give Write a letter of application to the principal of your school requesting for 15 days leave. Give
reason why you need leave.
reason why you need leave.
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