When light travels from air into water, it slows down, causing it to change direction slightly

in this type of mirrors the reflecting surface seems to be away from the incident light source.

Four types of magnets

These are the devices that process light waves to enhance an image for a more clear view.

is an optical instrument that uses a system of prisms, lenses or mirrors to reflect images through a tube

makes an image of objects in front of the mirror; these images appear to be behind the plane in which than mirror lies.

The human eye can focus on an object at a near-point distance of

is a device which is used to produce electric energy, which can be stored in batteries or can be directly supplied to the homes, shops, offices, etc.

Prevents internal reflection, supplies cells with oxygen and food, removes waste

Light sensitive layer, contains Rods and Cones

Magnetis Lithos

Involved in focusing

is the process of making something looks bigger than it is to see object in detail. This is the measure of the size of an image compared to the size of the object

they are also called as converging mirrors and used for focusing light

it is a form of an EM wave that is propagated perpendicular to the source of energy

is a telescope that uses a single or a combination of curved mirrors that reflect light and form an image.

is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation.

is a laboratory instrument used to examine objects that are too small to be seen by the naked eyis a laboratory instrument used to examine objects that are too small to be seen by the naked eye

Visible light has a range of wavelength between

Transparent front part of the eye where the greatest amount of refraction (bending) of light occurs

that allows light to pass through in order to capture an image on a light-sensitive surface (usually a digital sensor or photographic film).

Hole in the iris which allows the light through

is connected to a shaft of a mechanical energy source such as a motor and rotated. The mechanical energy required can be provided by engines operating on fuels such as diesel, petrol, natural gas, etc.

is an optical instrument that can capture image either 2D or 3D images.

is a type of lens that is thicker at the center than at the edges.

is a type of surface reflectance often described as a mirror-like reflection of light from the surface.

mechanism determines the amount of time the photosensitive surface is exposed to the light.

Contains cones which work in bright light and gives us our sense of color

This is also known as a diverging mirror as this mirror diverges light when it strikes on its reflecting surface.

true or false: concave mirrors from a both real and virtual image

the rays of light actually meet afterthe rays of light actually meet after reflection

is a type of spherical mirror in which, the reflecting surface is the inner curved surface of the sphere

A mirror can be

electromagnetism comes from a combination of the Greek works _____ meaning _________

is the reflection of light from a surface such that an incident ray is reflected at many angles, rather than at just one angle

Carries impulses to the brain

in refraction of light, the amount of bending depends on two things:

Maintains the shape of the eye

Light proof fibrous tissue

The incident light is reflected inwards (converged).

Used to focus objects onto the retina

is when light bounces off an object.

is the line joining the centers of curvatures of its surface.

is the eye part that contains receptors for sighting shapes

is a device that converts electrical energy into mechanical energy.

- a method of tracing the path that light takes in order for an individual to view a point on the image of an object

is a sensory organ that reacts to visible light and allows humans to use visual information for various purposes including seeing things, keeping balance, and maintainingis a sensory organ that reacts to visible light and allows humans to use visual information for various purposes including seeing things, keeping balance, and maintaining circadian rhythm

is defined as the physical phenomenon produced by moving electric charge

is the phenomenon associated with either stationary or moving electric charges.

identify the parts of the eye

of a curve is found at a point that is at a distance from the curve equal to the radius of curvature lying on the normal vector.

If the cut part of the hollow sphere is painted from inside, then its outer surface becomes the reflecting surface.

focus the light entering the camera, and the aperture can be narrowed or widened.

Virtual, erect, and diminished images are always formed with this mirror.

Like poles of a magnet repel each other

Control the amount of light entering the eye

a copper coil tightly wound onto a metal core) is rotated rapidly between the poles of a horseshoe type magnet.

is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope).

are optical devices that permit the reflection of light

Also called field glasses are two refracting telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes when viewing distant objects.

is a special kind of magnet produced by an electric current.

it appears to meet but not actually meet

a spherical mirror can be either

can travel in a straight path

is a machine that can convert electric energy into mechanical energy (specifically kinetic energy, or the energy of motion). This is typically achieved by exploiting the relationship between electricity and magnetism.

Protects the Cornea

is also known as a diverging mirror as this mirror diverges light when they strike on its reflecting surface.

Jelly -like material which maintains the shape of the eye

true or false: Light behaves both like a particle and a WAVE