If a spherical lens has a power of, – 0.25 D, the focal length of this lens will be *
Asked by adipadmakarri | 19th Aug, 2020, 09:01: AM
Expert Answer:
Negative sign of focal length indicates that it is concave lens.
Answered by Shiwani Sawant | 19th Aug, 2020, 11:24: AM
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