What are the different types of fuel cell?
Types of Fuel Cells
- Polymer electrolyte membrane fuel cells.
- Direct methanol fuel cells.
- Alkaline fuel cells.
- Phosphoric acid fuel cells.
- Molten carbonate fuel cells.
- Solid oxide fuel cells.
- Reversible fuel cells.
What is Polarisation in battery?
Polarization refers to an effect reducing the performance of batteries. This effect is a displacement of electrode potential from the equilibrium value. All electrochemical reactions occur in a series of steps at the interface between electrode and electrolyte.
What is a Polarisation curve?
A polarization curve is a plot of current density (i) versus electrode potential (E) for a specific electrode-electrolyte combination. Plots of log |i| vs. E or vs. (E – Eo) are called polarization curves. The polarization curve is the basic kinetic law for any electrochemical reaction.
What are the types of polarization?
Depending upon the transverse and longitudinal wave movement, the polarization of light is classified into three types.
- Linear polarization.
- Circular polarization.
- Elliptical polarization.
What is polarization in simple words?
Polarization happens when people become divided into contrasting groups. Outside science, polarization usually refers to how people think, especially when two views emerge that drive people apart, kind of like two opposing magnets. When Democrats and Republicans fight, it can cause polarization.
Is sunlight polarized?
Unpolarized light from the Sun becomes almost completely polarized when scattered through an angle of 90° by molecules in the atmosphere. On a sunny day, we often see the glare of reflected light from surfaces of water or glass.
What is polarization of wave and its types?
Following are the three types of polarization depending on the transverse and longitudinal wave motion: Linear polarization. Circular polarization. Elliptical polarization.
What is Polarised wave?
Waves are travelling disturbances that carry energy from one place to another along a certain direction, called the propagation direction. The displacement of a transverse wave can be in any direction in the plane that is perpendicular to the propagation direction. …
How does Polarisation work?
Polarized lenses mitigate glare by using a chemical film either applied to or embedded in the lenses. The chemical filter on polarized sunglasses removes glare by absorbing the incoming horizontal light, while still allowing vertical light. What we perceived as glare is usually reflected horizontal light.
What is S and P polarized light?
S&P polarization refers to the plane in which the electric field of a light wave is oscillating. S-Polarization is the plane of polarization perpendicular to the page (coming out of the monitor screen). P-polarization is the plane of polarization parallel to the page (in the plane of the monitor screen).
Which waves Cannot be polarized?
Longitudinal waves cannot be polarized like the transverse wave. The motion of the particles is already in one dimension that is in the direction of propagation of the wave. All the electromagnetic waves are transverse waves and they can be polarized.
Can humans see polarized light?
Though most of us are unaware of our capacity to do so, humans can also perceive the polarization of light. We detect the orientation of polarized light using ‘Haidinger’s brushes’, an entoptic visual phenomenon described by Wilhelm Karl von Haidinger in 1844 [2].
Can sound be polarized?
Unlike transverse waves such as electromagnetic waves, longitudinal waves such as sound waves cannot be polarized. Since sound waves vibrate along their direction of propagation, they cannot be polarized.
Can sound waves diffract?
Diffraction of sound waves is commonly observed; we notice sound diffracting around corners or through door openings, allowing us to hear others who are speaking to us from adjacent rooms. Many forest-dwelling birds take advantage of the diffractive ability of long-wavelength sound waves.
Can sound waves be polarized class 12?
Since sound waves are longitudinal waves, it is not possible to polarize them because the vibrations in sound waves are in a direction parallel to the propagation of waves. Hence, the correct option is B.
Can sound waves interfere?
When two or more sound waves occupy the same space, they affect one another. The waves do not bounce off of each, but they move through each other. Two identical sound waves can add constructively or destructively to give different results (diagrams A and B). …