Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Waves Traveling Sound Waves
Sound waves of wavelength λ travelling in a medium with a speed of v m/s enter into another medium where its speed is 2v m/s. Wavelength of sound waves in the second medium is
1
λ
2
\(\frac{λ}{2}\)
3
2λ
4
More than one of the above
5
None of the above