Geometrical OpticsHard
Question
Refractive index of violet,yellow and Red colour of light for a material of lens are 1.66, 1.64 & 1.62 respectively. If mean focal length of lens is 10cm Then chromatic abberation between the colour of violet and red will be
Options
A.0.625 cm
B.0.125
C.0.2 cm
D.0 cm
More Geometrical Optics Questions
In a laboratory four convex lenses L1 ,L2 ,L3 ,and L4 of focal lengths 2,4,6 and 8 cm respectively are available. Two of...A parallel beam of white blight falls on a convex lens. Images of blues, red and green light are formed on other side of...A person′s near point is 50 cm and his far point is 3 m. Power of the lenses he requires for- (i) reading and (ii)...The magnifying power of telescope is found to be 9 and seperation between lenses is 20cm. what are focal lengths of comp...An astronomical telescope of magnifying power 8 is made using two lenses spaced 45 cm apart. The focal length of the len...