Back to WAVES
NEET UG PHYSICS MCQ: WAVES
1
Medium
1 of 1
Application
+4 | -1
The frequency of a sonometer wire is . The frequency becomes when the mass producing the tension is completely immersed in water and on immersing the mass in a certain liquid, frequency becomes . The relative density of the liquid is
View answer and explanation
Correct option: D
Option D (1.18) is correct because the relative density is calculated by comparing the change in tension (due to buoyancy) when the mass is immersed in water and the unknown liquid.
More Questions from WAVES
Practice All Chapter MCQs →
A sound wave in air strikes the surface of a lake and penetrates into water. If speed of sound in water is , the frequency and wavelength of waves in water are
The equation for spherical progressive wave is (where is the distance from the source)
One metre long tube, closed at both ends, is lying horizontally. A mercury column of length 0.1m is filled in its middle and in rest two parts air is filled at atmospheric pressure. When tube is turned to vertical position, then displacement of mercury will be (standard pressure = 0.76 m of Hg)
A tuning fork produces waves in a medium. If the temperature of the medium changes, then which of the following will change
In a stationary wave all the particles
A SONAR system fixed in a submarine operates at a frequency . An enemy submarine moves towards the SONAR with a speed of . What is the frequency of sound reflected by a submarine? Take the speed of sound in water to be .
