A concave mirror is kept as shown in figure. Its principal axis coincides with the x -axis. A real object is moving towards the pole of the mirror starting from the $- \infty$ . In which region image will never form :-

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Position of object Position of image − ∞ → − C − C → − F − C → − F − ∞ → − C − F → P P → + ∞ So for any position of object image can't be between -f and P .

Position of object	Position of image
$- \infty \to - C$	$- C \to - F$
$- C \to - F$	$- \infty \to - C$
$- F \to P$	$P \to + \infty$

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JEE Main - 1 year (12th class)