The dispersive powers of glasses of lenses used in an achromatic pair are in the ratio 
. If the focal length of the concave lens is 
, then the nature and focal length of the other lens would be
a)
Convex, 
b)
Concave, 
c)
Convex, 
d)
Concave, 
The dispersive powers of glasses of lenses used in an achromatic pair are in the ratio . If the focal length of the concave lens is , then the nature and focal length of the other lens would be
a)
Convex,
b)
Concave,
c)
Convex,
d)
Concave,
Question ID - 152494 | SaraNextGen Top Answer
The dispersive powers of glasses of lenses used in an achromatic pair are in the ratio . If the focal length of the concave lens is , then the nature and focal length of the other lens would be
a)
Convex,
b)
Concave,
c)
Convex,
d)
Concave,
|
The dispersive powers of glasses of lenses used in an achromatic pair are in the ratio |
|||||||
|
a) |
Convex, |
b) |
Concave, |
c) |
Convex, |
d) |
Concave, |
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