curvature C. Focus :The principal focus is defined as the point on the principal axis where the light rays traveling parallel to the principal axis after reflection actually meet (for a concave mirror) or appear to meet (for a convex mirror). Pole : The pole is defined as the geometric center of the curved mirror. Rules of Reflection for Curved Mirrors 1. Any light ray traveling parallel to the principal axis is reflected by the curved mirror through the principal focus. It either actually
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wavelength is shown by: a. c c. b b. d d. a ____ 5. If wavelength is kept constant‚ which increases as the speed of a wave increases? a. period c. amplitude b. frequency d. phase ____ 6. Which shows the correct angle of reflection given the incident ray shown? a. c. b. d. ____ 7. If the period of a certain wave (wavelength = 4.5 m) is 2 seconds‚ what is the speed of the wave? a. 0.44 m/s c. 9.0 m/s b. 1.1 m/s d. 2.3 m/s ____ 8. Tapping
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time period of a simple pendulum. 10. To determine Faraday’s constant. 11. To determine electrochemical equivalent of a material. 12. To study the validity of ohm’s law for different types of material. 13. To study various factors on which the internal resistance /emf of a cell depends. 14. To study variations‚ in current flowing in a circuit containing a LDR ‚ because of variation. a. In the power of the incandescent lamp used to ‘illuminate’ the LDR. (keeping all the lamps at a fixed distance)
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mine alone. Date: 02/05/2012 Rajshekhar Bar 10PH40026 Department of Physics and Meterology IIT Kharagpur ABSTRACT Now a days x-ray reflectivity is a very useful method for the study of thin films and multilayer. This method is based on total external reflectivity. Using this method we can calculate the thickness of the film electron density profile of the material and roughness of the film surface. After a short introduction of Fresnel’s reflectivity‚ the Parratt formulation is used for
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Bibliography: http://www.rpi.edu/dept/phys/Dept2/APPhys1/optics/optics/node7.html http://issphysics.wikispaces.com/file/view/Lab+Report+Template.pdf http://www.visualopticslab.com/OPTI515L/Background/OpticalMaterials1.pdf http://uk.answers.yahoo.com/question/index?qid=20100107041138AAKhiJn http://homepages.rpi.edu/~schubert/Educational-resources/Materials-Refractive-index-and-extinction-coefficient
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Reflection Experiment Background Information The law of reflection states that the angle of incidence will be equal to the angle of reflection. I.e. the angle that the light strikes the reflective surface at will be the same as the angle that it leaves it at. Aim To investigate the law of reflection and evaluate its accuracy. Hypothesis The law of reflection will be correct. Apparatus and Materials Light Box Mirror Protractor Blank Paper Safety This experiment is
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refractive index and the ray should hit the center of the glass circle‚ so to check that the ray hits the center of the glass circle‚ we placed a wood block at the angle of reflection to see if the angle of reflection is the same as the angle of incidence‚ because we know that the angle of incidence is equal to the angle of reflection. Another thing which makes it easier to hit the center of the glass circle is by placing a paper on the flat side of the circle and see if the ray hits the center of the
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Baldeo Persaud NT1310 Unit 7 Assignment 1: Refraction‚ Reflection and Optics A good example of refraction of light and reflection of light is a rainbow. Sunlight enters the rain droplet at a specific angle and the rain droplet separates the white light into many different colors. This angle is a fixed measurement between your eye and the sun. What color is refracted depends upon the critical angle‚ which is the angle the sunlight strikes the back of the rain droplet. Red light bends the least
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This experiment seeks to demonstrate the law of reflection - the angle of incidence is equal to the angle of reflection when measured from the normal. Equipment Single slit raybox with power supply Paper Ruler Protractor Sharp Pencil Plane mirror Support for mirror (e.g. wooden block with a groove in‚ or plasticine) Method Draw a line on the paper. Place the mirror on the line and support it so it does not move. Shine the beam from the raybox towards the mirror. Use the pencil
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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
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