स्टील के चमकदार चम्मच की भीतर की ओर मुड़ी हुई सतह किस दर्पण की तरह कार्य करती है?

A security mirror in a store is required to provide a wide field of view and always form diminished, upright images regardless of the position of objects. Which type of mirror and principle should be used for its design?

Match Column I (Direction of ray of light before reflection) with Column II (Direction of ray of light after reflection) for spherical mirrors: Column I A) Incident ray passing through or directed onto the principal focus B) Incident ray passing through or directed onto the center of curvature C) Incident ray passing parallel to the principal axis D) Incident ray directed onto the pole of the mirror making an angle with the principal axis Column II P) Will pass through or appear to diverge from the principal focus Q) Reflected ray is on the other side of the principal axis making the same angle with respect to the incident ray R) Reflected ray will propagate parallel to the principal axis S) Reflected ray will retrace the path of incidence in the opposite direction