- A wave is a disturbance that transfers energy from one point to another. - In a longitudinal wave, particles of the medium vibrate parallel to the direction of wave propagation.
When a longitudinal wave moves through a certain medium, the quantity which is transmitted through the medium is
Asked in UPSC CAPF 2019 · Topic: Wave Motion (Energy and Power Transmission by Waves: Intensity)
More Physics questions
- Consider an angle-modulated signal $x(t) = 6 \cos(2\pi \times 10^6 t + 2 \sin(8000 \pi t)) V$ The average power of $x(t)$ is
- The value of $\int_{0}^{1} \frac{dx}{\sqrt{1- x^{4}}}$ is - - $(1) \frac{\sqrt{\pi}}{4} \frac{\left(\frac{1}{4}\right)^{2}}{\frac{3}{4}}$ - $(2) \frac{\sqrt{\pi}}{4} \frac{\frac{1}{4}} {\frac{3}{4}}$ - $(3) \frac{\sqrt{\pi}}{2} \frac{\frac{1}{4}}{\frac{3}{4}}$ - $(4) \frac{3} {2}\sqrt{\pi} \frac{\frac{1}{4}}{\frac{3}{4}}$ - (5) Question not attempted
- If $y=x$ is one of the solution of the differential equation $x^2\frac{d^{2}y}{dx^{2}} +x\frac{dy}{dx}-y=0$, then the second linearly independent solution of the above equation is - - $(1) \frac{1}{x^{2}}$ - $(2) \frac{1}{x}$ - $(3) x^{n}(n \in N)$ - $(4) x^{2}$ - (5) Question not attempted
- If A = $$ \begin{bmatrix} 1 & -1 & 1 \\ 2 & 1 & -3 \\ 1 & 1 & 1 \end{bmatrix} $$ , 10B = $$ \begin{bmatrix} 4 & 2 & 2 \\ -5 & 0 & \alpha \\ 1 & -2 & 3 \end{bmatrix} $$ and B is the inverse of matrix A, then the value of $\alpha$ is -
- Envelope of the curve $y = mx + \frac{a}{m} $, where m is a parameter is -
- The general solution of the partial differential equation $(y^3x - 2x^4)p + (2y^4 - x^3y)q = 9z(x^3 - y^3)$ is -
- One of the solution of differential equation $x + yp^2 = (1 + xy)p$, where $p = \frac{dy} {dx}$ is -
- Value of the integral $$ \int_{0}^{1} \int_{0} ^{1-x} \int_{0}^{1-x-y} x dz dy dx $$ is -