checkpointCHECKPOINT WORKSHEET ON LIGHT Q1. It is night-time and the desk lamp is on. Light shines onto the key. (a) (i) Draw one ray of light on the diagram to show the light shining from the lamp onto the key. Use a ruler. Put an arrow on the ray to show the direction of the light. 2 marks (ii) There is a patch of light on the wall. This light has been reflected from the key. Draw a reflected ray of light on the diagram. Use a ruler. 2 marks (b) There is a dark shadow on the table beside the mug. Explain how this
Premium Light Total internal reflection Optics
Ultraviolet rays can be separated into three different wavelengths. UVA‚UVB and UVC. this way they can be differentiated due to their wavelengths and the amount of energy they contain. UVA contains the least amount of energy and a smaller wavelength. UV-A radiation passes the earth’s atmosphere almost unfiltered. As both UVB and UVA rays can be detrimental to our health‚ it is important that we protect ourselves. UVC contains the highest amount of energy and a bigger wavelength. When the uv rays enters
Premium Oxygen Sun Carbon dioxide
Ray Parslow is a famous graphic designer and he loves his work. Ray enjoys working with a talented team who create designs for many different clients from large organisations‚ corporations and government departments‚ through to small businesses and charities. His work includes anything from designing business cards‚ logos‚ signage‚ posters‚ brochures or annual reports through to large-scale environmental graphics such as the Fox Studios’ site. A wide mix of interesting projects keeps his job exciting
Premium Graphic design Design Typography
have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite and to verify Snell’s Law. Materials: Lucite block‚ light ray box‚ paper‚ pencil‚ ruler and protractor. Procedure: First‚ place the
Premium Angle of incidence Total internal reflection Geometrical optics
Ray Charles The Life and Legacy of a Genius Ray Charles was a revolutionary pianist and a soul singer who helped shape the sound of rhythm and blues. He brought a soulful sound to everything from country music to pop standards to "God Bless America." His birth name was Ray Charles Robinson‚ but he shortened it when he entered show business to avoid confusion with the famous boxer Sugar Ray Robinson. I chose Ray Charles as the topic for my paper after seeing the movie Ray. After
Premium Management Marketing Health care
Some terms related with reflection are – 1. Incident Ray - The light ray striking a reflecting surface is called the incident ray. 2. Reflected Ray – The light ray obtained after reflection from the surface in the same medium in which incident ray is traveling. 3. Normal – The perpendicular drawn to the reflecting surface at the point of incidence is called the Normal. 4. Angle of Incidence – The angle which the incident ray makes with the normal at the point of incidence. It is denoted
Premium Total internal reflection Geometrical optics Refraction
Hypothesis: If the light goes through different mediums‚ then the light will bend because it is slowing down as it passes through the medium. Equipment: Semicircular plastic dish Polar graph paper Ray box with single slit Water Syrup Experimental Design: A ray box with a single slit will be shone through a semicircular dish through air‚ water‚ and syrup‚ on top of polar graph paper to see how the light will bend. Procedure: A semicircular dish was placed at the centre
Premium Angle of incidence Total internal reflection Refraction
investigate the behavior of light when it passes from air into an optically denser medium. Prediction / Hypothesis: When the light (incident ray) passes from air into an optically denser medium with an angle of incidence equal to zero‚ there would be no refraction. When the light passes at an angle from air into an optically denser medium‚ the light (incident ray) will immediately change direction and bent towards the normal which has an angle of incidence of 0. Method: 1. The semicircular
Premium Angle of incidence Total internal reflection Refraction
called specular or regular reflection. The laws of reflection are as follows: The incident ray‚ the reflected ray and the normal to the reflection surface at the point of the incidence lie in the same plane. The angle which the incident ray makes with the normal is equal to the angle which the reflected ray makes to the same normal. he reflected ray and the incident ray are on the opposite sides of the normal. These three laws can all be derived from the reflection equation
Premium Optics Mirror Geometrical optics
is observed with surface waves in bodies of water. Reflection is observed with many types of electromagnetic wave‚ besides visible light. Reflection of VHF and higher frequencies is important for radio transmission and for radar. Even hard X-rays and gamma rays can be reflected at shallow angles with special "grazing" mirrors. Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common
Premium Reflection Refraction Geometrical optics