Answer on Optics Question for irebami
image distance is negative for for real image
object distance is positive
image distance is negative for virtual image
focal length is negative for convex mirrors
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The slope of the graph of
plotted on the vertical axis againnst l on the horizontal axis is used to determine the value of -----------
acceleration due to gravity
2 The length of each side of a cube measured with verier callipers is 30mm.If the venier callipers can be read with an uncertainty of
mm, what does this give for approximate uncertainty in the value of its volume?
3 In an experiment to determine the surface tension of water, the travelling