FLASH/INTERACTIVE. Radio waves are another type of light, as is infrared light. The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects. As light travels from one material to another, it changes speed. …

Hide Show resource information. Radio waves – are used to transmit television and radio programs.. Microwaves – are used to transmit satellite television and for mobile phones.. Infrared – is used to transmit information from remote controls.. Each colour within the visible light spectrum has its own narrow band of wavelength and frequency. Energy; Electricity; Particle Model of Matter; Atomic Structure and Radioactivity; Physics Paper 1 Required Practicals; GCSE Physics Paper 2. Doc Brown's Physics Revision Notes. 0.0 / 5. Refraction happens due to a change in speed. Certain animals like bees can see other forms of light, such as ultraviolet light.

Radio waves, microwaves, infrared and visible light can all be used for communication. The longest wavelength light we can see is red , at about 700 nm (700 × 10 -9 m). Ultraviolet light … A lesson covering the uses of the electromagnetic spectrum designed for the new GCSE AQA Trilogy specification. Home > GCSE study tools > Physics > Electromagnetic Spectrum: Dangers and uses. This page will answer many questions about the … Humans can only see a small section of electromagnetic radiation, and this band is called the visible light spectrum.

ultraviolet waves and emit (give out) the energy as visible light. Visible light is only one kind of light, or electromagnetic radiation. Any longer than this, and w e c a n n o t s e e i t. types, properties, uses and the spectrum of visible light. A lesson covering the uses of the electromagnetic spectrum designed for the new GCSE AQA Trilogy specification.

ELECTROMAGNETIC RADIATION - introduction to EM waves . Photography when images are formed on the light sensitive film in a camera. Visible light is the light we can see, so is used in photography and illumination. What Effect has Ultraviolet Light from the Sun? As part of this lesson I use a song about the electromagnetic spectrum. Visible light. Iron oxide is a common ingredient in foundations that can provide protection against visible light, particularly blue light. Each colour of light we see has a different wavelength (and frequency). An object appears to be black if it absorbs all the wavelengths of visible light. Some of the ways visible light is used include: By our eyes when images are formed on the retina at the back of the eye. Visible light is the light we can see, so is used in photography and illumination. These materials are called fluorescent and are used for fluorescent lighting and security marking. Ultraviolet light is used to detect forged (fake) bank notes.

The patterns in the iris are translated into a code.

Not sure I understand exactly what you intend when you ask HOW it can be used. The wavelengths that humans are typically able to visualize lie in a very narrow range between approximately 400 and 700 nanometers. Different parts of the EM spectrum have different uses: THE ELECTROMAGNETIC SPECTRUM - BBC.

Waves activity - BBC.

A computer is used to locate the pupil (which appears very black in infrared illumination). green light is reflected by the grass and detected by our eyes; Coloured objects in coloured light. Electromagnetic Spectrum: Dangers and uses. These materials are called fluorescent and are used for fluorescent lighting and security marking. ultraviolet waves and emit (give out) the energy as visible light. Photography - Cameras use the lens to focus visible onto a light-sensitive film or electronic sector. Visible light - None - though if very intense can cause blindness; Ultraviolet - Damage to surface cells and eyes leading to cancer and__ eye conditions__ X-rays - Mutation or damage to cells in the body; Gamma rays - Mutation or damage to cells in the body; Uses. A description of the position of visible light in the electromagnetic spectrum and a look at medical uses of visible light. Suitable for GCSE/IGCSE Physics/Science courses or their equivalent. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century. Rates of Reaction; Organic Chemistry; Chemical Analysis; The Atmosphere; Resources; Chemistry Paper 2 Required Practicals; GCSE Physics Paper 1. When light encounters a material, it could be transmitted (pass through), reflected, absorbed or scattered by the material: Refraction.