Download App

14. waves and sound — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics14. waves and sound1 Mark
MCQ
Four wires of identical length, diameters and of the same material are stretched on a sonometre wire. If the ratio of their tensions is $1 : 4 : 9 : 16$ then the ratio of their fundamental frequencies are
  • A
    $16 : 9 : 4 : 1$
  • B
    $4 : 3 : 2 : 1$
  • C
    $1 : 4 : 2 : 16$
  • ✓
    $1 : 2 : 3 : 4$
✓

Answer

Correct option: D.
$1 : 2 : 3 : 4$
d
(d) $n \propto \sqrt T $
==> ${n_1}:{n_2}:{n_3}:{n_4} = \sqrt 1 :\sqrt 4 :\sqrt 9 :\sqrt {16} = 1:2:3:4$

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

Explore more

More "M.C.Q (1 Marks)" from 14. waves and sound→14. waves and sound — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The internal energy of one mole of an ideal gas depend upon:
→
A police van, moving at $22\, m/s$ , chases a motor-cyclist. The police man sounds horn at $176\, Hz$ , while both of them move towards a stationary siren of frequency $165\, Hz$ as shown in the figure. If the motor-cyclist does not observe any beats, his speed must be .... $m/s$ (take the speed of sound $= 330\, m/s$ )
→
In the graph shown in figure, which quantity associated with projectile motion is plotted along $y$-axis?
→
Water rises in a capillary upto a height $h$ . If this capillary is tilted by an angle of $45^o$, then the length of the water column in the capillary becomes
→
As the temperature of a metallic resistor is increased, the product of its resistivity and conductivity:
→
Consider a one-dimensional potential $V(x)$ as shown in the figure below. A classical particle of mass $m$ moves under its influence and has total energy $E$ as shown below. The motion is
→
A body starts from rest on a long inclined plane of slope $45^o$ . The coefficient of friction between the body and the plane varies as $\mu = 0.3\,x$ . where $x$ is distance travelled down the plane. The body will have maximum speed ( for $g = 10\,m/s^2$ ) when $x=$  ........ $m$
→
Two water pipes $P$ and $Q$ having diameters $2$$ \times 10^{-2} $ $m$ and $4$ $\times 10^{-2}$ $m$, respectively, are joined in series with the main supply line of water. The velocity of water flowing in pipe $P$ is
→
What is/are the same for $O_2$ and $NH_3$ in gaseous state
→
When a body is taken from the equator to the poles, its weight
→