Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Waves Energy and Power of a Wave Traveling Along a String
A string 2.0 m long and fixed at its ends is driven by a 240 Hz vibrator. The string vibrates in its third harmonic mode. The speed of the wave and its fundamental frequency is:
1
180 m/s, 80 Hz
2
320 m/s, 80 Hz
3
320 m/s, 120 Hz
4
More than one of the above
5
None of the above