Question

In case of standing waves –

• A. At nodes particles displacement is time dependent
• B. At antinodes displacement of particle may or may not be zero
• C. Wave does not travel but energy is transmitted
• D. Components waves traveling in same direction having same amplitude and same frequency are superimposed

Answer 1

Answer: (B)

At antinodes displacement of particle may or may not be zero

Answer 2

For resonance, v₀ ®  (max)

\ (aw² – bw + c)^1/2 ® minimum

$\frac { \mathrm { d } } { \mathrm { d } \omega }$ (aw² – bw + c) = 0 Ž 2aw – b = 0

Ž w =