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When the velocity of source and listener is equal to or greater than the sound velocity
When source and listener moves in opposite direction
When the velocity of source and listener is less than the sound velocity
None of the above
In which of the following industries is mica as a raw material?
In which of the following processes is energy released ?
In which of these transistors, the two segments of n-type semiconductor are separated by a segment of p-type semiconductor?
In which one among the following is the speed of sound maximum ?
In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie
In which year, Sir Chandrasekhara Venkata Raman was awarded Nobel Prize for Raman effect?
Increased wind speed is accompanied by a reduced air _
Indicate the false statement about the resistance of a wire
Indicate the true arrangement for electromagnetic radiation in order of their increasing wavelength
Indiscriminate disposal of used fluorescent electric lamps causes mercury pollution in the environment. Why is mercury used in the manufacture of these lamps?