refractive index of media a b c and d are given as 1.33,2.52,1.44 and 1.89 respectively using the above data answer the following question a) Identify the medium with highest optical density, b) Identify the medium with lowest optical density, c) Identify the medium in which the speed of light will be maximum d)Identify the medium in which the speed of light is minimum

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

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  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.

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