A) \[{{60}^{o}}\]
B) \[{{90}^{o}}\]
C) \[{{120}^{o}}\]
D) \[{{30}^{o}}\]
Correct Answer: B
Solution :
The number of images is given by \[n=\frac{{{360}^{o}}}{\theta }-1\] \[3=\frac{{{360}^{o}}}{\theta }-1\], \[\theta ={{90}^{o}}\]You need to login to perform this action.
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