Which among the following diagrams do not contain concentric circles?
Fig 1
Fig 2
Fig 3
Fig 4
Fig 1, fig 2 and fig 3 contain concentric circles.
Fig 4 doesn't contain concentric circles as the centres of the circles are not the same.
Question 16 Which of the following ray diagrams is correct for the ray of light incident on a concave mirror as shown in figure 10.6? (a) Fig. A (b) Fig. B (c) Fig. C (d) Fig. D