\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.

The Election Commission of India is set to conduct a special summary revision of voter lists in Jammu and Kashmir's Nagrota and Budgam constituencies. The revision, for the upcoming bye-elections, ...

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