Concave lens is

Options :
  1. thick in middle, thin at corner
  2. thick at corner, thin in the middle
  3. entire surface same
  4. none of the above
Answer and Explanation :-

Answer: Option 2


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Let mental culture go on advancing, let the natural sciences progress in even greater extent and depth, and the human mind widen itself as much as it desires: beyond the elevation and moral culture of Christianity, as it shines forth in the Gospels, it will not go.
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