A student stands between two walls and claps his hands once as shown in the given figure. Now, match column I with column II and select the correct option from the given codes. (Speed of sound is 340 m/s)
AP-(i), Q-(ii), R-(i)
BP-(i), Q-(ii, iii), R-(ii)
CP-(ii), Q-(ii), R-(i, iii)
DP-(ii, iii), Q-(i), R-(ii)
why is the speed of sound different in question 14 and question 15