Civil Engineering - Surveying - Discussion
Discussion Forum : Surveying - Section 4 (Q.No. 48)
48.
The power of a lens
Discussion:
11 comments Page 1 of 2.
Erin said:
2 years ago
All of these are correct, I too agree.
(1)
WASEEM SANGI said:
2 years ago
I think Option A is also right.
DEEPIKA said:
3 years ago
Yes, Thanks @Amjad Ali.
(1)
Komal said:
4 years ago
Yes, Agree with you @Amjad Ali.
(1)
Amjad Ali said:
5 years ago
All these options are correct.
(1)
Lalit said:
5 years ago
The focal length f is positive for converging lenses and negative for diverging lenses. The reciprocal of the focal length, 1/f, is the optical power of the lens. If the focal length is in meters, this gives the optical power in dioptres (inverse meters).
(1)
Hardik said:
5 years ago
Yes, A is also correct.
Dutesh said:
6 years ago
Yes, A is the correct option.
KULDIP said:
6 years ago
A is also a right answer.
Nayan said:
7 years ago
According to me, it is Both A and D.
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