Context for question 6Figure 6.1 is a full-scale drawing of an object O, a thin converging lens L and the image I of object O.
6(a)(i)Lenses Image FormationEasy1 markIdentify Z.AnormalBoptical centreCprincipal focusDprincipal axisEfocal lengthFincident rayGrefracted rayGrade answerSolutionGrading criteria
6(a)(ii)Lenses Image FormationMedium2 marksDetermine the focal length of the lens L. Show any working in the space provided or on Figure 6.1.AnswerTypeWriteMath0 wordsGrade answerGrading criteria
6(a)(iii)Lenses Image FormationEasy2 marksThe image in Figure 6.1 is inverted. State two other characteristics of the image.Two answers required.AvirtualBrealCmagnifiedDdiminishedEuprightFthe same size as the objectGon the same side of the lens as the objectHformed at the principal focusGrade answerSolutionGrading criteria
6(b)(i)Lenses Image FormationEasy1 markThe lens in Figure 6.2 is used as a magnifying glass. Draw an X on Figure 6.2, to show a position for an object which produces a magnified image.PenEraserUndoRedoClearDraw with the mouse or a finger.Grade answerGrading criteria
6(b)(ii)Lenses Image FormationEasy1 markSelect the two statements which describe the position of the magnified image.Two answers required.Aon the opposite side of the lens to the objectBon the same side of the lens as the objectCthe same distance from the lens as the object.Dcloser to the lens than the objectEfurther away from the lens than the objectGrade answerSolutionGrading criteria