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A curved surface of radius R separates two medium of refractive indices mu subscript 1 end subscript and mu subscript 2 end subscript as shown in figures A and B Choose the correct statement(s) related to the virtual image formed by object O placed at a distance x, as shown in figure A

  1. Virtual image is formed for any position of O if mu subscript 2 end subscript < mu subscript 1 end subscript    
  2. Virtual image can be formed if x > R and mu subscript 2 end subscript< mu subscript 1 end subscript    
  3. Virtual image is formed if x < R and mu subscript 2 end subscript > mu subscript 1 end subscript    
  4. None of these    

The correct answer is: Virtual image is formed for any position of O if mu subscript 2 end subscript < mu subscript 1 end subscript

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