I WANT TO UNDERSTAND LENS FORMULAE

### Asked by deevyanshkumarsingh | 23rd Mar, 2019, 09:00: AM

Expert Answer:

### Lens formula is
1/v -1/u= 1/f
Where v is distance of image from optical centre of lens
And u is the distance of object from optical centre of lens
And f is the focal length of lens
Direction along incident ray is taken as positive.

### Answered by Ankit K | 23rd Mar, 2019, 08:18: PM

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