10Hz
20Hz
1000Hz
5780Hz
Correct answer is C
\(\lambda\) = 2L
2 x 17 = 34cm
F = \(\frac{V}{\lambda}\)
= \(\frac{340}{34 \times 10^{-2}}\)
= 1000Hz
When two cells of negligible internal resistances and equal e.m.f. denoted by E\(_1\) and E\(_2...
A man standing between two parallel mirrors in a barber's shop will see the following number of ...
The maximum and minimum thermometer reads the ...
Which of the following is/are TRUE of nuclear fission? I. A heavy nucleus is split into two nucl...
It is easier to roll a stone up a sloping road than to lift it vertical upwards because ...
An a.c. the generator can be converted to a d.c. generator by replacing the ...