MCQ
Which of the following statements is wrong
- ASound travels in straight line
- BSound is a form of energy
- CSound travels in the form of waves
- ✓Sound travels faster in vacuum than in air
✓
Answer
Correct option: D.
Sound travels faster in vacuum than in air
d
(d)Air is more rarer for sound to travel as compared to vacuum.
(d)Air is more rarer for sound to travel as compared to vacuum.
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 body of mass $5\,kg$ is suspended by a spring balance on an inclined plane as shown in figure. (in $N$)
→A constant power delivering machine has towed a box, which was initially at rest, along a horizontal straight line. The distance moved by the box in time $'t'$ is proportional to
→A couple is acting on a two particle systems. The resultant motion will be:
The mean free path of gas molecules depends on $(d =$ molecular diameter$)$
→The radius of a thin wire is $0.16\; mm$. The area of cross-section taking significant figure into consideration in square millimeters is?
→Work done for the process shown in the figure is ............ $J$
→A force $\overrightarrow{ F }=4 \hat{ i }+3 \hat{ j }+4 \hat{ k }$ is applied on an intersection point of $x =2$ plane and $x$ -axis. The magnitude of torque of this force about a point $(2,3,4)$ is.......... . (Round off to the Nearest Integer)
→A particle is tied to one end of a light inextensible string and is moved in a vertical circle, the other end of the string is fixed at the centre. Then for a complete motion in a circle, which is correct.
$($air resistance is negligible$).$
→$($air resistance is negligible$).$
A uniform metal wire of density $\rho $, cross-sectional area $A$ and length $L$ is stretched with a tension $T$. The speed of transverse wave in the wire is given by
→A boy walks to his school at a distance of $6\, km$ with constant speed of $2.5\, km/hour $ and walks back with a constant speed of $4 \,km/hr.$ His average speed for round trip expressed in $km/hour$, is
→