Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons?
Options: 1.8 km, 0.15 km, 2.2 km, 0.20 km, 2.8 km, 0.25 km, 3.3 km, 0.30 km
The preamble enshrines certain ideals that were first spelt out in
Options: the speech by Jawaharlal Nehru on the banks of Ravi when he called for Purana Swaraj, the Nehru report, a resolution adopted at the Karachi session of the Indian National Congress, the Objectives Resolution adopted by the Constituent Assembly
It is more difficult to walk on a sandy road than on a concrete road because
Options: sand is soft and concreter is hard, the friction between sand and feet is less than that between concrete and feet, the friction between sand and feet is more than that between concrete and feet, the sand is grainy but concrete is smooth