0
Why will light pass through a pair of polaroids when the axes are aligned but not when the axes are at right angles to each other?
A polaroid allows light to pass through it in only one plane. If both polaroids are aligned, they will allow light to pass through the same plane. Otherwise, each will allow light to pass through a different plane and the overall effect of the two polaroids is that it will not allow light to pass through them.
What else can I help you with?
An ideal Polaroid will transmit 50 percent of nonpolarized light incident on it How much light is transmitted by two ideal Polaroids that are oriented with their axes parallel to each other?
When two ideal polaroids are oriented with their axes parallel, the total amount of light transmitted would be 50% of the light transmitted by the first polaroid, which is 50%. Therefore, the total light transmitted through both polaroids would be 25%.
When does the intensity of transmitted light become maximum when a polaroid sheet is rotated between two crossed polaroids?
The intensity of transmitted light becomes maximum when the polaroid sheet is oriented at 45 degrees angle between two crossed polaroids. At this angle, the transmitted light passes through both polarizers with the least obstruction.
How do you get the same ray of light after passing through the prisms?
after the light passes through the prism, the light is technically still the same just separated into different energy levels or colors. if you want to achieve the "white" light that entered the prism again, you can place another prism in front of the colored light and it should combine and create the "white" light again.
Why colors refract at different angles?
Colors refract at different angles because each color of light has a different wavelength. When light passes through a medium like a prism, the different wavelengths of light are slowed down by different amounts, causing them to bend at different angles as they exit the prism. This separation of colors is known as dispersion.
Why prisms disperse white light?
Prisms disperse white light because different colors of light have different wavelengths, causing them to refract at different angles as they pass through the prism. This results in the colors of the spectrum spreading out and becoming visible as a rainbow.
Two polarizing filters overlapped at right angles create what?
When two polarizing filters are overlapped at right angles, they block all light from passing through. This phenomenon occurs because the first filter only allows light waves aligned with its polarization axis to pass, while the second filter, being perpendicular to the first, prevents those aligned waves from passing through. As a result, the combination effectively renders the system opaque to light.
An ideal Polaroid will transmit 50 percent of nonpolarized light incident on it How much light is transmitted by two ideal Polaroids that are oriented with their axes parallel to each other?
When two ideal polaroids are oriented with their axes parallel, the total amount of light transmitted would be 50% of the light transmitted by the first polaroid, which is 50%. Therefore, the total light transmitted through both polaroids would be 25%.
What are crossed polaroids?
A Polaroid is a material that aligns ordinary unpolarized light into a single plane. Crossed polaroids are simply two polaroids set up so that the second Polaroid is aligning the light into a plane perpendicular to the plane of the first. To put it more simply, the first Polaroid crams the light into the Y axis and the second crams the light along the Y axis into the X axis which essentially reduces it to nothing. hyperphysics.phy-astr.gsu.edu/hbase/phyopt/polcross.html
When does the intensity of transmitted light become maximum when a polaroid sheet is rotated between two crossed polaroids?
The intensity of transmitted light becomes maximum when the polaroid sheet is oriented at 45 degrees angle between two crossed polaroids. At this angle, the transmitted light passes through both polarizers with the least obstruction.
What percentage of light is transmitted by two ideal Polaroids one on top of the other with their polarization axes aligned?
50% - If the light incident on the first filter is unpolarized then 50% of the light will be transmitted (see other questions for a full explanation of why). Next, when this 50% arrives at the second filter, Malus' Law says that if the axes match up, then 100% will be transmitted. 100% of 50% is 50%. :-)
If two polaroid filters are held with their polarization axes at right angles to each other the amount of light transmitted compared to when their axes are parallel is?
When two polaroid filters are held with their polarization axes at right angles to each other, no light is transmitted as the filters block all light waves aligned with their polarization axes. When their axes are parallel, the maximum amount of light is transmitted because all light waves can pass through without being blocked.
How do you get the same ray of light after passing through the prisms?
after the light passes through the prism, the light is technically still the same just separated into different energy levels or colors. if you want to achieve the "white" light that entered the prism again, you can place another prism in front of the colored light and it should combine and create the "white" light again.
How do prisms work?
Refraction is when light bends through an object. White light is made up of all the colors of the spectrum. Different colors have different wavelengths, therefore they bend at different angles. So when white light passes through a prism the different colors bend at different angles, so they separate to produce the rainbow of light that we see.
Why colors refract at different angles?
Colors refract at different angles because each color of light has a different wavelength. When light passes through a medium like a prism, the different wavelengths of light are slowed down by different amounts, causing them to bend at different angles as they exit the prism. This separation of colors is known as dispersion.
Why prisms disperse white light?
Prisms disperse white light because different colors of light have different wavelengths, causing them to refract at different angles as they pass through the prism. This results in the colors of the spectrum spreading out and becoming visible as a rainbow.
What is the working principle of a laser?
A laser works by emitting a concentrated beam of light through a process called stimulated emission, where photons are amplified and aligned to create a powerful and focused beam of light.
Do all light waves that travel through a convex lens always pass through the focal point?
No, not all light waves that travel through a convex lens pass through the focal point. It depends on the wavelength of the light, since light of different wavelengths diffract at different angles when encountering a change in media, such as air to glass, at an angle. Isaac Newton noted this in his study of light and prisms.
