Geometrical OpticsEasy
Question
A simple convex lens is used in such a way that an object is placed at 25 cm away from the lens. In order to have 10 times virtual magnification, the focal length of the lens should be -
Options
A.5 cm
B.2 cm
C.27 cm
D.0.1 cm
More Geometrical Optics Questions
In an optics experiment, with the position of the object fixed, a student varies the position of a convex lens and for e...White light is passed through a prism of angle 5o If the refractive indices for red and blue colour are 1.641 and 1.659 ...An object is situated at a distance of 15 cm from a convex mirror of focal length 30 cm. The position of the image forme...A short linear object of length b liesalong the axis of a concave mirror of focal length f at a distance u from the pole...A astronomical telescope has objective and eyepiece of focal lengths 40 cm and 4 cm respectively. To view an object 200 ...