Which of the following films won the best film award in the 48th International Film Festival of India (IFFI), organized from November 20 to 28, 2017 in Panji, Goa?
A hollow hemispherical bowl is made of silver with its outer radius 8 cm and inner radius 4 cm respectively. The bowl is melted to form a solid right circular cone of radius 8 cm. The height of the cone formed is