MHT CET · Physics · Waves and Sound
Two sound waves having same amplitude ' \(A\) ' and angular frequency. ' \(\omega\) ' but having a phase difference of \(\left(\frac{\pi}{2}\right)^c\) are superimposed then the maximum amplitude of the resultant wave is
- A \(\frac{\mathrm{A}}{\sqrt{2}}\)
- B \(\frac{\mathrm{A}}{2}\)
- C \(\sqrt{2} \mathrm{~A}\)
- D 2 A
Answer & Solution
Correct Answer
(C) \(\sqrt{2} \mathrm{~A}\)
Step-by-step Solution
Detailed explanation
\(A_{\max }=\sqrt{A^2+A^2}=\sqrt{2} A\)
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
- The self-inductance of solenoid of length \(31.4 \mathrm{~cm}\), area of cross section \(10^{-3} \mathrm{~m}^2\) having total number of turns 500 will be nearly \(\left[\mu_0=4 \pi \times 10^{-7}\right.\) SI unit \(]\)MHT CET 2021 Hard
- A metal surface of work function \(1.13 \mathrm{eV}\) is irradiated with light of wavelength \(310 \mathrm{~nm}\). The retarding potential required to stop the escape of photoelectrons is [Take \(\frac{\mathrm{hc}}{}=1240 \times 10^{-9} \mathrm{SI}\) units]MHT CET 2023 Medium
- A particle starts oscillating simple harmonically form its mean position with time period \(T\). At time \(t=\frac{T}{12}\), the ratio of the potential energy to kinetic energy of the particle is \(\left(\sin 30^{\circ}=\cos 60^{\circ}=0.5, \cos 30^{\circ}=\sin 60^{\circ}=\frac{\sqrt{3}}{2}\right)\)MHT CET 2022 Medium
- An inductor coil takes current \(8 \mathrm{~A}\) when connected to a \(100 \mathrm{~V}\) and \(50 \mathrm{~Hz} \mathrm{AC}\) source. A pure resistor under the same condition takes current of \(10 \mathrm{~A}\). If inductor coil and resistor are connected in series to a \(100 \mathrm{~V}\) and \(40 \mathrm{~Hz}\) AC supply, then the current in the series combination of above resistor and inductor isMHT CET 2021 Hard
- The excess pressure inside the first soap bubble of radius ' \(\mathrm{R}_{1}\) ' is two times, that inside the second soap bubble of radius ' \(\mathrm{R}_{2}\) '. The ratio of volumes of the first bubble to that of second bubble isMHT CET 2020 Easy
- Earth has mass ' \(M_1\) ' radius ' \(R_1\) ' and for moon mass ' \(\mathrm{M}_2\) ' and radius ' \(\mathrm{R}_2\) '. Distance between their centres is ' \(r\) '. A body of mass ' \(M\) ' is placed on the line joining them at a distance \(\frac{r}{3}\) from the centre of the earth. To project a mass ' M ' to escape to infinity, the minimum speed required isMHT CET 2024 Hard
More PYQs from MHT CET
- If \(\mathrm{A}=\left[\begin{array}{lll}1 & 1 & 1 \\ 1 & \mathrm{a} & 3 \\ 3 & 2 & 2\end{array}\right]\) and \(\mathrm{B}=\left[\begin{array}{ccc}-2 & 0 & \mathrm{~b} \\ 7 & -1 & -2 \\ \mathrm{c} & 1 & 1\end{array}\right]\) and if matrix \(B\) is the inverse of matrix \(A\), then value of \(4 a+2 b-c\) isMHT CET 2024 Medium
- A coil of ' \(n\) ' turns and resistance \(R \Omega\) is connected in series with a resistance \(\frac{R}{2}\). The combination is moved for time 't' second through magnetic flux \(\Phi_1\) to \(\Phi_2\). The induced current in the circuit isMHT CET 2025 Medium
- Water rises up to a height of \(4 \mathrm{~cm}\) in a capillary tube. The lower end of the capillary tube is at a depth of \(8 \mathrm{~cm}\) below the water level. The mouth pressure required to blow an air bubble at the lower end of the capillary will be ' \(\mathrm{X}\) ' \(\mathrm{cm}\) of water, where \(\mathrm{X}\) is equal toMHT CET 2021 Medium
- To manufacture a solenoid of length ' \(\ell\) ' and inductance ' \(L\) ', the length of the thin wire required is (Diameter of the solenoid is very less than length, \(\mu_0=\) permeability of free space)MHT CET 2025 Medium
- A beam of light of intensity \(I_0\) falls on a system of three polaroids which are arranged in succession such that the pass (transmission) axis is turned through \(60^{\circ}\) with respect to preceding one. The fraction of the incident light intensity that passes through the system is
\(\left(\cos 60^{\circ}=1 / 2\right)\)MHT CET 2025 Medium - The line \(L\) is passing through \((1,2,3)\). The distance of any point on the line \(L\) from the line \(\bar{r}=(3 \lambda-1) \hat{i}+(-2 \lambda+3) \hat{j}+(4+\lambda) \hat{k}\) is constant. Then the line \(L\) does not pass through the pointMHT CET 2025 Hard