
A wire of resistance $ R $ is bent into a triangular pyramid as shown in the figure, with each segment having the same length. The resistance between points $ A $ and $ B $ is $ \frac{R}{n} $. The value of $ n $ is:
Match the different types of sports ball listed in List-I with their respective official weight in List-II 
Match the Equipment listed in List-I with their associative sports in List-II. 