A tuning fork vibrating with a frequency of 512 Hz is kept

Last updated: 6/30/2023

A tuning fork vibrating with a frequency of 512 Hz is kept close to the open end of a with water as shown in the figure The water level in the tube is gradually lowered When the water level is 17 cm below the open end maximum intensity of sound is heard The room temperature is 20 C Then 17 cm A Speed of sound in air at room temperature is 360 ms B Speed of sound in air at 0 C is 336 ms Tilled Reservoir C If the water in the tube is replaced with mercury then the intensity of reflected sound increases D If the water in the tube is replaced with mercury then the intensity of reflected sound