मराठी

Which of the Following Waves Can Be Polarized (I) Heat Waves (Ii) Sound Waves? Give Reason to Support Your Answer. - Physics

Advertisements
Advertisements

प्रश्न

Which of the following waves can be polarized (i) Heat waves (ii) Sound waves? Give reason to support your answer.

 

 

उत्तर

Heat waves can be polarized because heat waves are transverse waves whereas sound waves cannot be polarized because sound waves are longitudinal waves.

Transverse waves can oscillate in the direction perpendicular to the direction of its propagation but longitudinal waves like sound waves oscillate only along the direction of its propagation. So, longitudinal waves cannot be polarized.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2012-2013 (March) Delhi Set 2

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Distinguish with the help of a suitable diagram, the difference in the behaviour of a conductor and a dielectric placed in an external electric field.


Write a relation for polarisation `vecP`of a dielectric material in the presence of an external electric field `vecE .`


A dielectric slab is inserted between the plates of an isolated charged capacitor. Which of the following quantities will remain the same?


A parallel-plate capacitor having plate area 400 cm2 and separation between the plates 1⋅0 mm is connected to a power supply of 100 V. A dielectric slab of thickness 0⋅5 mm and dielectric constant 5⋅0 is inserted into the gap. (a) Find the increase in electrostatic energy. (b) If the power supply is now disconnected and the dielectric slab is taken out, find the further increase in energy. (c) Why does the energy increase in inserting the slab as well as in taking it out?


Define the term polarization of a dielectric and write the expression for a linear isotropic dielectric in  terms of electric field.


The dielectric constant of a medium is also known as ______


Two metal spheres, one of radius R and the other of radius 2R, both have same surface charge density σ. They are brought in contact and separated. What will be new surface charge densities on them?


The voltage rating of a parallel plate capacitor is 500V. Its dielectric can withstand a maximum electric field of 106 V/m. The plate area is 10-4 m2. What is the dielectric constant if the capacitance is 15 pF?

(given ε0 = 8.86 × 10-12 C2/Nm2)


A capacitor filled partially with dielectric material of dielectric constant 'k'. Its electric potential versus position graph is as shown. The distance between the two plates is 4 mm. The dielectric constant of the medium is ______.

 


An isolated parallel plate capacitor is maintained at a certain potential difference. When a 3 mm thick slab is introduced between the plates, in order to maintain the same potential difference the distance between the plates is increased by 2.4 mm. The dielectric constant of the slab will be ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×