TS EAMCET · Physics · Waves and Sound
Which of the following wave has the largest wave speed?
- A \(y(x, t)=2 \sin (2 x-2 t)\)
- B \(y(x, t)=3 \sin (2 x-3 t)\)
- C \(y(x, t)=2 \sin (3 x-2 t)\)
- D \(y(x, t)=3 \sin (5 x-2 t)\)
Answer & Solution
Correct Answer
(B) \(y(x, t)=3 \sin (2 x-3 t)\)
Step-by-step Solution
Detailed explanation
\(V=\frac{\omega}{K}=\frac{\text { coeff. of } t}{\text { coeff. of } x}\) Clearly, highest wave speed is for wave equation given in option (b), which is given as \(\mathrm{V}=\frac{3}{2}=1.5 \mathrm{~m} / \mathrm{s}\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Assertion (A): Optical fibres are widely used in communication network.Reason (R) Optical fibres are small in size, light weight, flexible and there is no scope for interference in them.TS EAMCET 2004 Easy
- A particle of mass \(\mathrm{m}\) and charge \(\mathrm{q}\) travelling with a velocity \(v\) along the \(\mathrm{x}\)-axis enters a uniform electric field \(\overrightarrow{\mathrm{E}}\) directed along the y-axis. What will be the trajectory of the particle?TS EAMCET 2022 Medium
- A monochromatic light of wavelength \(\lambda\) ejects photoelectrons from a metal surface with work function \((\phi) 2.4 \mathrm{eV}\). These photoelectrons are made to collide with hydrogen atoms in ground state. The maximum value of \(\lambda\) for which hydrogen atom may be ionised is [take, \(h c=1240 \mathrm{eV}-\mathrm{nm}\) ]TS EAMCET 2020 Easy
- When an element \({ }_{90}^{232} \mathrm{Th}\) decays into \({ }_{82}^{208} \mathrm{~Pb}\), the number of \(\alpha\) and \(\beta^{-}\)particles emitted respectively areTS EAMCET 2025 Medium
- Two cars \(A\) and \(B\) are moving with speeds \(v_A=120 \mathrm{~km} / \mathrm{h}\) and \(v_B=50 \mathrm{~km} / \mathrm{h}\) respectively in the directions as indicated by the arrow in the figure below. What is the relative speed of the car \(B\) with respect to car \(A\) ?
TS EAMCET 2020 Easy - The ratio of specific heats of a gas is \(\gamma\). The change in internal energy of one mole of the gas, when the volume changes from \(V\) to \(2 V\) at constant pressure \(p\) isTS EAMCET 2005 Medium
More PYQs from TS EAMCET
- The air columns in two tubes closed at one end vibrating in their fundamental modes produce 2 beats per second. The number of beats produced per second when the same tubes are vibrated in their fundamental mode with their both ends open areTS EAMCET 2025 Medium
- Find the ratio of the length of a steel rod and a copper rod if the steel rod is longer than the copper rod at any temperature.
[The coefficient of linear expansion for steel and copper are and respectively]TS EAMCET 2022 Medium - Rain is falling at an angle of \(30^{\circ}\) from the vertical due to the wind with a speed of \(40 \mathrm{~m} / \mathrm{s}\). A car is travelling horizontally in the direction opposite to the wind, at a speed of \(40 \mathrm{~m} / \mathrm{s}\). At what angle from the vertical will it experience the rain falling from?
TS EAMCET 2019 Easy - Two short magnets of equal dipole moments \(M\) are fastened perpendicularly at their centres which lies at origin. Let two magnets lie along \(X\)-axis and \(Y\)-axis, respectively. The magnitude of the magnetic field at a distance \(R\) from the centre on the \(Y\)-axis is \(\frac{\mu_0}{4 \pi} \frac{M_0}{R^3}\). Assuming, \(R>>l\) (magnet length), the magnitude of \(M\) isTS EAMCET 2020 Medium
- The force required to move a body up a rough inclined plane is double the force required to prevent the body from sliding down the plane. The coefficient of friction, when the angle of inclination of the plane is \(60^{\circ}\) isTS EAMCET 2014 Hard
- If the radiation emitted by a perfect radiator has maximum intensity at a wavelength of \(2900 Å\), the intensity of radiation emitted by it is (Stefan-Boltzmann's constant \(=5.67 \times 10^{-8} \mathrm{Wm}^{-2} \mathrm{~K}^{-4}\) and Wein's constant \(=2.9 \times 10^{-3} \mathrm{mK}\) )TS EAMCET 2025 Medium