The refractive index of prism for a monochromatic light is √3 and its refracting
NextA point object O and a mirror M move with velocities of 3 cm s−1 and 4 cm s−1 re
An object is placed at a distance of 10 cm from a convex lens of power 5D. Find the position of the
EasyA plano-convex lens has a central thickness of 2 mm and an aperture diameter of 8 cm. If the speed o
MediumA convex lens of focal length 20 cm is in contact with a concave lens of focal length 40 cm. The pow
MediumIf M.P. of Gallian telescope is 9 & tube length is 80 cm, then fo & fe will be respectively.
MediumA bird is flying 3 m above the surface of water. If the bird is diving vertically down with speed =
MediumA point object O and a mirror M move with velocities of 3 cm s−1 and 4 cm s−1 respectively as shown
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