UNIVERSAL VIRTUAL CONTENT ACADEMY (UVC) CPA PAPER 5 Index numbers By the end of topic‚ participants should be able to; 1. Appreciate the usefulness of index numbers in monitoring changes over time 1. Calculate simple indices 2. Determine simple aggregate price indices 3. Use laspeyre’s and Paashe’s price indices to determine weighted indices. What is an index number? An index number is a statistical measure designed to show/ monitor changes over a period of time in the price‚ quantity
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to ‘illuminate’ the LDR. (keeping all the lamps at a fixed distance) b. In the distance of an incandescent lamp‚ (of fixed power)‚ used to ‘illuminate’ the LDR. 15. To find the refractive indices of (a) water (b) oil (transparent) using a plane mirror‚ an equiconvex lens‚ (made from a glass of known refractive index) and an adjustable object needle. 16. To design an appropriate logic gate combination for a given truth table. 17. To investigate the relation between the ratio of a. Output and
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FE1002 PHYSIC 2 Tutorial 1– [optic] 2007/2008 Semester 2 FE1002 Physic 2 Tutorial 1 – Optic QUESTION 1: light with a wavelength of 700nm is incident on the face of a fused quartz prism (n = 1.46 at 700nm)at an angle of 75˚ (with respect to the normal to the surface). The apex angle of the prism is 60.0˚. Calculate the a) b) c) d) angle of refraction at this first interface angle of incident at this second interface angle of refraction at the second interface and angle between the incident and
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Crosstalk- unwanted signals in a communication channel (as in a telephone‚ radio‚ or computer) caused by transference of energy from another circuit (as by leakage or coupling) Waveguides- a device (as a duct‚ coaxial cable‚ or glass fiber) designed to confine and direct the propagation of electromagnetic waves FTTH- the installation and use of optical fiber from a central point directly to individual buildings such as residences‚ apartment buildings and businesses to provide unprecedented high-speed
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Experiment 9: THE TANGENT GALVANOMETER; PURPOSE: In this experiment we will measure the magnitude of the horizontal component of the Earth’s Magnetic field by the use of an instrument called a tangent galvanometer. INTRODUCTION: A tangent galvanometer consists of a number of turns of copper wire wound on a hoop. At the center of the hoop a compass is mounted. When a direct current flows through the wires‚ a magnetic field is induced in the space surrounding the loops of
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Fiber Optics Fiber Optic Cable Facts "A relatively new technology with vast potential importance‚ fiber optics is the channeled transmission of light through hair-thin glass fibers." [ Less expensive than copper cables [ Raw material is silica sand [ Less expensive to maintain If damaged‚ restoration time is faster (although more users are affected) [ Backbone to the Information Superhighway Information (data and voice) is transmitted through the fiber digitally by the use of high
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1/f=1/do+1/di Law of refraction: n1sin0=n2sin02. Condition for multiple slit interference maximum: dsin0=mlambda Approach to optics treats light as a ray phenomenon: geometric optics Index of refraction for an optical material is- speed in light of vacuum:speed of light in material Relation between the refractive index‚ the two surface curvatures & the focal length of lens: lensmakers equation Snells law results from: wave speed depends on the density of medium Brewsters Angle: all perpendicularly
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Write your name here Surname Other names Centre Number Edexcel International GCSE Candidate Number Physics Unit: 4PH0 Science (Double Award) 4SC0 Paper: 1P Thursday 12 January 2012 – Morning Time: 2 hours Paper Reference 4PH0/1P 4SC0/1P Materials required for examination. Ruler‚ calculator Total Marks Instructions black ink or ball-point pen. t Use in the boxes at the top of this page with your name‚ t Fill centre number and candidate number. all questions. t Answer Answer the in the spaces
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Snel’s Law is used to calculate the path of waves to compute the angles of incidence and refraction. • The law is also used in metamaterials‚ which allows light to be bent ’’backwards’’ at a negative angle of refraction with a negative refraction index. What is refraction? • Deflection from a straight path undergone by a light ray or energy wave in passing obliquely from one medium into another‚ in which the velocity is different. • Refraction occurs when a beam of light is bent and is caused
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SENIOR SECONDARY EXAMINATION Scheme of Physics Practical Examination Duration: 3 hours Maximum Marks: 20 There will be a practical examination of 20 marks apart from the theory examination. The distribution of 20 marks is as follows: (i) (ii) (iii) Viva Record Book Two Experiments 4 Marks 2 Marks 14 Marks Note: There are 30 experiments in three Groups A‚ B and C. In the practical; examination candidates has To do two experiments which should not be from the same group and each experiment carries
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