MCQ
In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is 0.17s. The frequency of the wave is:
- A1.47Hz
- B0.36Hz
- C0.73Hz
- D2.94Hz
✓
Answer
- 1.47Hz
Explanation:
T = 4 × Time from max. displacement to zero displacement.
$=4\times0.170=0.68\text{s}$
$\text{n}=\frac{1}{\text{T}}=\frac{1}{0.68}$
$=1.47\text{Hz}$
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 uniform rope of total length $l$ is at rest on a table with fraction $f$ of its length hanging (see figure). If the coefficient of friction between the table and the chain is $\mu$, then
→Two projectiles are thrown simultaneously in the same plane from the same point. If their velocities are $v_1$ and $v_2$ at angles $\theta _1$ and $\theta_2$ respectively from the horizontal, then answer the following question
→If $v_1\,\,cos\,\,\theta _1 = v_2\,\,cos\,\,\theta _2$, then choose the incorrect statement
Force constant of a spring $(K)$ is synonymous to
→A circular disc is rolling on a horizontal plane. Its total kinetic energy is $300\,\,J.$ ......... $J$ is its translational $K.E.$
→A circular plate of uniform thickness of diameter $56\, cm$, whose center is at origin. A circular part of diameter $42\, cm$ is removed from one edge. What is the distance of the centre of mass of the remaining part ........ $cm.$
→The relation between root mean square speed $\left( v _{ rms }\right)$ and most probable speed $\left( v _{ p }\right)$ for the molar mass $M$ of oxygen gas molecule at the temperature of $300\, K$ will be
→As one considers orbits with higher values of n in a hydrogen atom, the electric potential energy of the atom:
- Decreases.
- Increases.
- Remains the same.
- Does not increase.
At the highest point of the path of a projectile, its
The bob of a simple pendulum is displaced from its equilibrium position $O$ to a position $Q$ which is at height h above $O$ and the bob is then released. Assuming the mass of the bob to be $m$ and time period of oscillations to be $2.0\, sec$, the tension in the string when the bob passes through $O$ is
→The average acceleration vector for a particle having a uniform circular motion is