Answer to Question #51839 in Optics for Samuel

Question

11 Refraction is a measure of the ------------ as a wave passes from medium to another
a) velocity b) frequency c) wave front d) displacement
12 The image of an object is found to be upright and reduced in size. What type of mirror is used to produce such an image? a) Concave b) Convex c) Both mirrors d) None of the above
13 Convex mirrors are mostly used as? a) magnifying glasses b) driving mirrors c) dentist mirrors d) artist mirrors
14 Which of the following is NOT true of experiments involving curved mirrors? a) image distance is negative for for real image b) object distance is positive c) image distance is negative for virtual image d) focal length is negative for convex mirrors
15 Which of the following is NOT applicable when plotting the graph of experimntal data? a) Lines of best fit should always be used b) circled dots or crosses may be used to show plotted points c) thin, sharp and continuous lines are acceptable d) the scale must be chosen to make the graph occupy as small as