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ICSE Class 9 Answered

how to determine whether focal length is negative or positive
Asked by studyworkofficial | 18 Nov, 2021, 06:41: PM
answered-by-expert Expert Answer
The focal length is positive or negative depends on the sign convention followed: - 
According to New Cartesian sign convention, 
focale length of concave mirror is negative and convex mirror is positive.
And focal length of concave lens is negative and convex lens is positive. 
Answered by Shiwani Sawant | 19 Nov, 2021, 09:50: AM
ICSE 9 - Physics
Asked by studyworkofficial | 18 Nov, 2021, 06:41: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
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