MCQ
The following phenomenon cannot be observed for sound waves
- ARefraction
- BInterference
- CDiffraction
- ✓Polarisation
✓
Answer
Correct option: D.
Polarisation
d
(d)Sound waves are longitudinal in nature so they can not be polarised
(d)Sound waves are longitudinal in nature so they can not be polarised
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 large square container with thin transparent vertical walls and filled with water (refractive index $\frac{4}{3}$ ) is kept on a horizontal table. A student holds a thin straight wire vertically inside the water $12 cm$ from one of its corners, as shown schematically in the figure. Looking at the wire from this corner, another student sees two images of the wire, located symmetrically on each side of the line of sight as shown. The separation (in $cm$ ) between these images is . . . . .
→Each of three blocks $P$, $Q$ and $R$ shown in figure has a mass of $3 \mathrm{~kg}$. Each of the wire $A$ and $B$ has cross-sectional area $0.005 \mathrm{~cm}^2$ and Young's modulus $2 \times 10^{11} \mathrm{~N} \mathrm{~m}^{-2}$. Neglecting friction, the longitudinal strain on wire $B$ is____________ $\times 10^{-4}$. $\left(\right.$ Take $\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$ )
→Before the saturation state of a diode at the plate voltages of $400\, V $ and $200 \,V $ respectively the currents are $i_1$ and $i_2$ respectively. The ratio $ i_1/i_2$ will be
→The displacement of a particle executing $SHM$ is given by $y=0.25 \sin 200 t$ $cm$. The maximum speed of the particle is $.........cm s^{-1}$
→The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is ........ $\%$
→Four wires of equal length and of resistances $10$ $ ohms$ each are connected in the form of a square. The equivalent resistance between two opposite corners of the square is ............. $ohm$
→Name the logic gate equivalent to the diagram attached
A carnot engine is made to work between $200\,^oC$ and $0\,^oC$ first and then between $0\,^oC$ and $-200\,^oC$. The ratio of efficiencies $\left( {\frac{{{\eta _2}}}{{{\eta _1}}}} \right)$ of the engine in two cases is
→In the figure given below. a block of mass $M =490\,g$ placed on a frictionless table is connected with two springs having same spring constant $\left( K =2 N m ^{-1}\right)$. If the block is horizontally displaced through ' $X$ 'm then the number of complete oscillations it will make in $14 \pi$ seconds will be $.........$
→A ball of mass $0.2 \ kg$ rests on a vertical post of height $5 m$. A bullet of mass $0.01 \ kg$, traveling with a velocity $V / s$ in a horizontal direction, hits the centre of the ball. After the collision, the ball and bullet travel independently. The ball hits the ground at a distance of $20 \ m$ and the bullet at a distance of $100 \ m$ from the foot of the post. The initial velocity $V$ of the bullet is
→