Optics and Light Quiz

<p>Light will reflect back into water. (C)</p> Signup and view all the answers

<p>$n_2 ext{sin}( heta_1) = n_1 ext{sin}( heta_2)$ (A)</p> Signup and view all the answers

<p>Total internal reflection happens, and light is completely reflected. (C)</p> Signup and view all the answers

<p>Fiber optic communication (B)</p> Signup and view all the answers

<p>Less weight and reduced interference (C)</p> Signup and view all the answers

<p>To transmit images from a camera through a fiber optic cable (A)</p> Signup and view all the answers

<p>$ heta_1 &gt; heta_critical$ (C)</p> Signup and view all the answers

<p>Refraction of light at the air-water interface (D)</p> Signup and view all the answers

<p>The refractive index of hot air is higher than that of cold air (B)</p> Signup and view all the answers

<p>Their high refractive index causes internal reflections (C)</p> Signup and view all the answers

<p>Dispersion of light at different wavelengths (B)</p> Signup and view all the answers

<p>Approximately 2.42 (D)</p> Signup and view all the answers

<p>The brightest spot in the pattern (C)</p> Signup and view all the answers

<p>Brightness increases as one moves further away (A)</p> Signup and view all the answers

<p>Red light (B)</p> Signup and view all the answers

<p>Constructive interference (A)</p> Signup and view all the answers

<p>The first point of maximum intensity after the central maximum (C)</p> Signup and view all the answers

<p>Different colors exhibit different rates of diffraction (D)</p> Signup and view all the answers

<p>Light spreads out when passing through narrow openings. (B)</p> Signup and view all the answers

<p>Light has both wave and particle characteristics. (D)</p> Signup and view all the answers

<p>The relationship between speed, frequency, and wavelength. (C)</p> Signup and view all the answers

<p>Only two distinct lines on the screen. (A)</p> Signup and view all the answers

<p>Red light (A)</p> Signup and view all the answers

<p>Dispersion (D)</p> Signup and view all the answers

<p>Blue light has a higher refractive index than red light. (D)</p> Signup and view all the answers

<p>It becomes white light again. (B)</p> Signup and view all the answers

<p>The color of the light (B)</p> Signup and view all the answers

<p>25.5 degrees (D)</p> Signup and view all the answers

<p>An incorrect formula was used (D)</p> Signup and view all the answers

<p>Distance between the slits (A)</p> Signup and view all the answers

<p>The order of maximum (D)</p> Signup and view all the answers

<p>Monochromatic light (D)</p> Signup and view all the answers

<p>Ammonite gemstones (C)</p> Signup and view all the answers

<p>A bright spot at the center of the shadow of a small circular object (B)</p> Signup and view all the answers

<p>To disperse light into its component colors (A)</p> Signup and view all the answers

<p>It proved that light behaves as a transverse wave (D)</p> Signup and view all the answers

<p>It affects the location and spread of the diffraction pattern (A)</p> Signup and view all the answers

<p>0.163 mm (D)</p> Signup and view all the answers

<p>711 lines/mm (C)</p> Signup and view all the answers

<p>K = λ * d1 / (d2 * d2) (B)</p> Signup and view all the answers

<p>1000 mm/m (D)</p> Signup and view all the answers

<p>1.625E-7 m (D)</p> Signup and view all the answers

<p>It is partially absorbed and vibrates in a single plane. (C)</p> Signup and view all the answers

<p>Polarized light isn't vibrating in the same direction as the filtr. (C)</p> Signup and view all the answers

<p>They are designed to be vertically polarized. (C)</p> Signup and view all the answers

<p>Light waves vibrate in many planes, making polarization variable. (C)</p> Signup and view all the answers

<p>Because light produced in a single plane of vibration can be polarized. (B)</p> Signup and view all the answers

Water appears deeper than it actually is due to light refraction.

Optical illusions caused by light bending in air of different temperatures.

Gemstones sparkle due to high refractive index.

Measure of how light bends in a material.

Different colors of light refract at slightly different angles.

Light reflects off the boundary between two mediums when the angle of incidence is greater than the critical angle.

The specific angle of incidence at which light transitions from passing through to reflecting off a boundary.

Using light signals to transmit information through thin glass fibers by repeatedly reflecting light.

Total Internal Reflection has uses in communication, medicine and lighting.

Fiber optic communication is faster, smaller, and has less interference than traditional wire communication.

The speed at which light travels through glass, calculated using the refractive indices of glass and air, and the speed of light in air.

n₁sin(θ₁) = n₂sin(θ₂). Used to determine the critical angle where θ₂ = 90°.

The critical angle at which light passing from water to air is refracted at 90 degrees in air, approximately 48.8 degrees.

Bending of light when changing mediums (e.g., air to glass).

Separation of white light into different colors.

Optical tool that separates white light into colors.

Red light bends the least when passing through a prism.

Blue light bends the most when passing through a prism.

Alternating bright and dark bands on a screen, created when waves overlap.

When waves combine to create a larger amplitude wave.

When waves combine to create a smaller amplitude wave, or cancel each other out completely.

An experiment demonstrating the wave nature of light by observing an interference pattern from light passing through two narrow slits.

The pattern of light and dark bands created when light waves pass through a narrow opening or around an obstacle.

The brightest spot at the center of a diffraction pattern. It's the point where all the waves interfere constructively.

The number assigned to each bright or dark band in a diffraction pattern, starting from the center (zeroth order).

Shorter wavelengths of light, like blue light, diffract less than longer wavelengths, like red light. This means blue light spreads out less than red light after passing through a narrow opening.

The distance between the bright bands in a diffraction pattern remains largely constant, even when the distance from the light source to the screen increases. However, the intensity of the pattern increases with distance.

A classic experiment demonstrating wave interference, where light passing through two narrow slits creates an alternating pattern of bright and dark fringes on a screen.

The difference in the distance traveled by light waves from each slit to a point on the screen.

The angle at which a bright fringe (maximum) occurs in the interference pattern, calculated using the wavelength of light, slit spacing, and order of maximum.

The number of the bright fringe (maximum) on the screen, counting from the central maximum, where n=0 for the central maximum, n=1 for the first maximum, n=2 for the second maximum, and so on.

The interaction of light waves reflected from the top and bottom surfaces of a thin film, resulting in interference patterns that create vivid colors.

A surface with many closely spaced slits or lines that diffract light, separating it into its component colors.

Light is diffracted at both edges of the slit, creating a pattern of bright and dark bands on a screen behind the slit.

A bright spot that appears at the center of the shadow of a small circular object when illuminated by a point source of light.

An experiment demonstrating that light is a transverse wave by passing light through a circular opening and observing the resulting diffraction pattern.

The number of lines that can be fitted into one millimeter on a DVD surface, determining its resolution.

The distance between the DVD and the projection screen, affecting how the lines on the DVD are magnified.

The width of a human hair, a common object used as a scale for measuring microscopic distances.

To determine the lines per mm on the DVD using the known distance between DVD and screen, screen and hair, hair width, and wavelength of light.

The distance between the DVD and the screen affects how much the DVD lines are magnified, contributing to the image size.

Polarization is a phenomenon that supports the transverse wave nature of electromagnetic radiation (EMR), specifically light. It describes the alignment of the electric field vector in light waves.

Non-polarized light vibrates in multiple planes, meaning the electric field vector points in various directions perpendicular to the direction of light propagation.

Polarized light vibrates in a single plane, meaning the electric field vector points in the same direction for all the light waves.

A polarizing filter is a material that selectively absorbs light waves vibrating in certain directions, transmitting only those vibrating in a specific plane.

Polarized sunglasses are designed with vertically polarized lenses to block horizontally polarized light, primarily reflected glare from surfaces like water or roads. This reduces glare and improves visual clarity.