MCQ
For a particle executing simple harmonic motion, the acceleration is proportional to:
  • Displacement from the mean position.
  • B
    Distance from the mean position.
  • C
    Distance travelled since t = 0.
  • D
    Speed.

Answer

Correct option: A.
Displacement from the mean position.
For S.H.M.,
F = -kx
ma = -kx (F = ma)
or,
$\text{a}=-\frac{\text{k}}{\text{m}}\text{x}$
Thus, acceleration is proportional to the displacement from the mean position but in opposite direction.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The average power consumed by the given circuit is......$W$
The current flow in a Zener diode is mainly due to
An electric kettle has two heating coils. When one coil is used, water in the kettle boils in $5$ minutes, while when second coil is used, same water boils in $10\,\min$. If the two coils, connected in parallel are used simultaneously, the same water will boil in time
For the refraction of light through a prism
A moving coil galvanometer has N number of turns in a coil of effective area A, it carries a current I. The magnetic field B is radial. The torque acting on the coil is
Light of wavelength $\lambda= 5000 Å$ falls normally on a narrow slit. A screen placed at a distance of $1\, m$ from the slit and perpendicular to the direction of light. The first minima of the diffraction pattern is situated at $5\, mm$ from the centre of central maximum. The width of the slit is.......$mm$
Samples of two radioactive nuclides, $X$ and $Y$, each have equal activity $A_0$ at time $t = 0$ . $X$ has a half life of $24$ years and $Y$ a half life of $16$ years. The samples  are mixed together.What will be the total activity of the mixture at $t = 48$ years ?
Three plates of common surface area A are connected as shown. The effective capacitance will be
Assertion : The magnetic filed at the ends of a very long current carrying solenoid is half of that at the center.
Reason : If the solenoid is sufficiently long, the field within it is uniform.
In Young’s double-slit experiment, an interference pattern is obtained on a screen by a light of wavelength $6000 \mathring A$ , coming from the coherent sources $S_1$ and $S_2$. At certain point $P$ on the screen third dark fringe is formed. Then the path difference $S_1 P-S_2 P$ in microns is