A sounding tuning fork is brought near the open end of a ...
A sounding tuning fork is brought near the open end of a pipe containing air and the loudness of the sound is observed to increase. This observation is due to
an echo
resonance
interference
reverberation
Correct answer is B
No explanation has been provided for this answer.
In a series R-L-C circuit, R = 10Ω, Xc= 4Ω and XL = 9Ω. The...
Which statement is NOT correct about molecules? ...
I. Wavelength II. Medium of propagation III. Wave velocity IV. Frequency V. Energy Which of the...
An a.c. generator can be converted into a d.c. generator by replacing ...
It is easier to roll a barrel full of coal tar than to pull it because ...
A stroboscope can be used to make the wave appear …………. ...
The electrolyte used in the Nickel-Iron (NiFe) accumulator is ...