MCQ
In stationary waves, distance between a node and its nearest antinode is $20 \mathrm{~cm}$. The phase difference between two particles having a separation of $60 \mathrm{~cm}$ will be
- AZero
- B$\pi / 2$
- C$\pi$
- ✓$3 \pi / 2$
✓
Answer
Correct option: D.
$3 \pi / 2$
$\frac{\lambda}{4}=20 \Rightarrow \lambda=80 \mathrm{~cm}, \text { also } \Delta \phi=\frac{\lambda}{2 \pi} \cdot \Delta x $
$\Rightarrow \Delta \phi=\frac{60}{80} \times 2 \pi=\frac{3 \pi}{2}$
$\Rightarrow \Delta \phi=\frac{60}{80} \times 2 \pi=\frac{3 \pi}{2}$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A force applied by an engine of a train of mass $2.05 \times 10^6 \mathrm{~kg}$ changes its velocity from $5 \mathrm{~m} / \mathrm{s}$ to $25 \mathrm{~m} / \mathrm{s}$ in 5 minutes. The power of the engine is
→An L-shaped glass tube is just immersed in flowing water such that its opening is pointing against flowing water. If the speed of water current is $v$, then
→
When an ideal diatomic gas is heated at constant pressure, the fraction of the heat energy supplied which increases the internal energy of the gas, is
Referring to above question, the angle with the horizontal at which the projectile was projected is
For a particle executing simple harmonic motion, which of the following statements is not correct
The spectral energy distribution of star is maximum at twice temperature as that of sun. The total energy radiated by star is
In a resonance pipe the first and second resonances are obtained at depths $22.7 \mathrm{~cm}$ and $70.2 \mathrm{~cm}$ respectively. What will be the end correction
→For free expansion of the gas which of the following is true
A solid ball of metal has a concentric spherical cavity within it. If the ball is heated, the volume of the cavity will
If a photon has velocity $c$ and frequency $v$, then which of following represents its wavelength
→