InterviewSolution
Saved Bookmarks
| 1. |
If two lenses of focal lengths f_(1) and f_(2) are kept in contact with each other, state the formula for the focal length of the combination . If P_(1) and P_(2) are the powers of these lenses, state the formula for the power of the combination. |
| Answer» SOLUTION :If POWERS of TWO lenses are `P_(1) and P_(2)` then the power of their combination is GIVEN by the formula `P = P_(1) + P_(2)`. | |