1 Answers

Option 1 :

[ alt="alp solution" src="//storage.googleapis.com/tb-img/production/18/08/alp%20solution.PNG" style="height:54px; width:174px">

if a mirror is placed on the line MN, then [ alt="ALP solution 123" src="//storage.googleapis.com/tb-img/production/18/08/ALP%20solution%20123.PNG" style="height:28px; width:87px"> will look like [ alt="ALP 1" src="//storage.googleapis.com/tb-img/production/18/08/ALP%201.PNG" style="height:34px; width:86px">

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