If the volume elasticity of fresh water and sea water are assumed to be the same, it is necessary that for the velocity of sound to be the same

The process of getting fresh water from sea water is known as

Two different object are completely immersed in water and undergo same loss in weight. Is it necessary that the weights of these objects in air be also the same?

Two different object are completely immersed in water and undergo same loss in weight. Is it necessary that the weights of these objects in air be also the same?

Perch : Fresh water : : ? : Salt water

When a ship enters sea water from fresh water it sinks less.

If the same time taken for the reflected sound to reach the sonar os 2 s, the depth of the sea is _______ m. (velocity of sound in water is 1500 ms^(-1) )

Compare the adaptations of animals with fresh water and sea waer mode of life.

Chanukya was eager to know the time taken by sound to travel the same distance in water and air. So, he set a body on vibration with a frequency of 250 Hz in air and the sound produced bu this is heard at a distance of 175 m. Now if the body is vibrated in water, what is the difference in the time taken by the sound to travel the same distance in water and air ? (The velocity of sound in air and water is 350 ms^(-1) and 1400 ms^(-1) , respectively).