Power is defined as reciprocal of length .
Mathematically,
Power = [tex] \frac{1}{focal \: length} [/tex]
[tex]\implies Focal \: length = \frac{1}{Power}[/tex]
Putting Power = 1 dioptre
[tex]\implies Focal \: length = \frac{1}{1}[/tex]
[tex]\implies Focal \: length = 1 metre[/tex]
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Power is defined as reciprocal of length .
Mathematically,
Power = [tex] \frac{1}{focal \: length} [/tex]
[tex]\implies Focal \: length = \frac{1}{Power}[/tex]
Putting Power = 1 dioptre
[tex]\implies Focal \: length = \frac{1}{1}[/tex]
[tex]\implies Focal \: length = 1 metre[/tex]