» Unlabelled » In an internal focussing type of telescope, the lens provided is ______.

Friday, 20 September 2013

In an internal focussing type of telescope, the lens provided is ______.

a)    concave
b)    convex
c)    plano-convex
d)    plano-concave

Ans: a

at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)