An achromatic telescope objective is to be made by combining the lense – McqOptions

MCQOPTIONS

1.	An achromatic telescope objective is to be made by combining the lenses of flint and crown glasses. This proper choice is [CPMT 1977]
A.	Convergent of crown and divergent of flint
B.	Divergent of crown and convergent of flint
C.	Both divergent
D.	Both convergent
Answer» B. Divergent of crown and convergent of flint

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