Optical fibres Study guides, Revision notes & Summaries

Fibres - ANSWER Material in paper. Created from cellulose, from wood or rags paper is made of - ANSWER fibres and additives coated paper - ANSWER adding a thin coat of calcium carbonate additives - ANSWER chalk, clay, optical brightners Substrate - ANSWER the material the graphics are displayed on Cross Media - ANSWER Creating files to work across a range of platforms $9.2 billion - ANSWER $ produced by Canadian printing industry 51,000 - ANSWER people employed in Candian G...

BTEC Applied Science Unit 1 Chemistry Exam 271 Questions with Answers How many electrons can an s subshell hold? - CORRECT ANSWER 2 How many electrons can a p subshell hold? - CORRECT ANSWER 6 How many electrons can a d subshell hold? - CORRECT ANSWER 10 Which subshells are available in the first energy level? - CORRECT ANSWER s Which subshells are available in the second energy level? - CORRECT ANSWER s and p Which subshells are available in the third energy level? - CORRECT...

TM111 Block 1 Part 1 Final Exam Questions And Answers Digital technology - ANSWER- any technology that is based on representing data as sequences of numbers Network - ANSWER- A collection of devices that can communicate with each other. Smart device - ANSWER- An electronic device that processes information and exchanges it with other devices Internet - ANSWER- The global internetwork that has grown since the 1960s World Wide Web - ANSWER- An internet service that links computer fi...

TM111 Block 1 Part 1 Exam Questions and Answers 100% Pass Digital technology - Answer- any technology that is based on representing data as sequences of numbers Network - Answer- A collection of devices that can communicate with each other. Smart device - Answer- An electronic device that processes information and exchanges it with other devices Internet - Answer- The global internetwork that has grown since the 1960s World Wide Web - Answer- An internet service that links computer files...

Medical physics 45 Questions and Answers with Complete Solutions 100% Correct | Latest Update 2024

TM111 Block 1 Part 1 Exam Questions and Answers 100% Pass Digital technology - Answer- any technology that is based on representing data as sequences of numbers Network - Answer- A collection of devices that can communicate with each other. Smart device - Answer- An electronic device that processes information and exchanges it with other devices Internet - Answer- The global internetwork that has grown since the 1960s World Wide Web - Answer- An internet service that links computer files...

In an investigation into taxis, termites were split into 3 groups Group A had their eyes covered (moved straight up) Group B had their antenna covered (moved straight to light) Group C were the control (moved diagonally up and towards light) What does Group A show about the factors controlling termite movement? Antenna involved in response to gravity Don't respond to light as eyes are covered In a graph of membrane permeability against time, the line for Na+ ions increases rapidly betwee...

Define the amplitude of a wave - Correct answer-The distance from the rest position to the top of the wave Define the period of a wave - Correct answer-The time taken for one wavelength to pass a point Define the frequency of a wave - Correct answer-The number of waves per second How many ms are in 1s? - Correct answer-1000 Define coherent light - Correct answer-Coherent light has the same frequency/wavelength and is in phase Define a transverse wave - Correct answer-The oscillations are...

State what is meant by the term analogue signal (1 mark) - Correct answer-A signal that can have any value State what is meant by the term digital signal (1 mark) - Correct answer-A signal that has 2 values only which are 0 and 1. Explain 2 advantages of using digital signals instead of analogue signals to transmit television programmes. (2 marks) - Correct answer-1. Digital Signals can carry more info than Analogue signals. 2. Less interference so better quality is produced. Give 2 othe...

Amplitude - Correct answer-The maximum value of displacement in the oscillation cycle Displacement - Correct answer-How far the quantity has moved from its rest value at any given time Period - Correct answer-The time taken for one whole cycle of an oscillation Oscillation - Correct answer-A regularly repeating motion about a central value Wave speed equation - Correct answer-Wave speed = frequency x wavelength / v=fλ Transverse waves - Correct answer-The displacement of the wave is at ri...