Which of the following is not a mechanical wave?
...Which of the following is not a mechanical wave?
wave in closed pipe
radio waves
water waves
sound waves
Correct answer is B
Mechanical waves require material medium for their propagation only radio waves among the options docs require a material medium
Magnetism at the centre of a bar magnet is ...
The effective capacitance between points X and Y in the diagram below is 1.0μF, What is the value...
Which of the following liquids has the highest surface tension? ...
Which of the following is an essential physical property of the wires used for making fuses? ...
The bond that forms a semiconductor is? ...
A cell can supply current of 0.8A and 0.4A through a 2Ω and a 3Ω resistors respectively....