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PhysicsGeometrical OpticsRefraction+ReflectionMedium2 minQB
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Column-I gives certain situations regarding a point object and its image formed by an optical instrument. The possible optical instruments are diverging and conveging mirrors or lenses as given in Column-II. Same side of principal axis means both image and object should either be above the principal axis or both should be below the principal axis as shown in figure. Same side of optical instrument means both image and object should be either left of the optical instrument or both should be on right of the optical instrument as shown in figure. Match the statements in column-I with the corresponding statements in column-II.

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                        Column I                                                                      Column II

            (A) If point object and its image are on same side of                              (p) Concave mirror

                 principal axis and opposite sides of the optical

                 instrument then the optical instrument is

            (B) If point object and its image are on opposite side                             (q) Convex mirror

                 of principal axis and same sides of the optical

                 instrument then the optical instrument is

            (C) If point object and its image are on same side                                   (r) Diverging lens

                 of principal axis and same sides of the optical

                 instrument then the optical instrument is

            (D) If point object and its image are on opposite side                             (s) Converging lens

                 of principal axis and opposite sides of the optical

                 instrument then the optical instrument is

Options:

Answer:
A
Solution:

 

(A) If point object and its image are on same side of principal axis (erect) and opposite sides of the optical instrument (image behind mirror), then the instrument is a concave mirror (p) or a convex mirror (q).

(B) If point object and its image are on opposite side of principal axis (inverted) and same sides of the optical instrument (real image in front of mirror), then the instrument is a concave mirror (p).

(C) If point object and its image are on same side of principal axis (erect) and same sides of the optical instrument (virtual image on same side as object for lens), then the instrument is a diverging lens (r) or a converging lens (s) (object between F and O).

(D) If point object and its image are on opposite side of principal axis (inverted) and opposite sides of the optical instrument (real image on opposite side of lens), then the instrument is a converging lens (s).

 

The final answer is

Stream:JEESubject:PhysicsTopic:Geometrical OpticsSubtopic:Refraction+Reflection
2mℹ️ Source: QB

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