The dispersive power of the material of lens of focal length 20 cm is – McqOptions

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1.	The dispersive power of the material of lens of focal length 20 cm is 0.08. The longitudinal chromatic aberration of the lens is [EAMCET 2005]
A.	0.08 cm
B.	0.08/20 cm
C.	1.6 cm
D.	0.16 cm
Answer» D. 0.16 cm

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