1 Describe the image of a candle positioned 20cm in front of a concave mirror of focal length 30cm
virtual, inverted, 12cm behind mirror and magnified 3 times
real, inverted, 12cm in front of mirror and diminished 3 times
virtual, erect, 60cm behind mirror and magnified 3 time
real, erect, 60cm in front of mirror and diminished 3 times
2 In an experiment involving a spherical mirror, 1/v was plotted on the vertical axis and 1/u on the horizontal axis. What is the linear magnification?
slope of the graph
inverse of the the slope of the graph
intercept on the vertical axis
intercept

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