Use a phasor diagram to show that the resultant amplitude of two waves 𝐸1 = 𝐸𝑜𝑠𝑖𝑛𝛽 𝐸2 = 𝐸𝑜𝑠𝑖𝑛(𝛽 + 𝜎) EXPERT ANSWER
EXPERT ANSWER These all reactions are oxidation reactions. In part a, the alcohol is primary, so it will convert to aldehyde or carboxylic acid. As nascent oxygen is used, so it is converted directly to carboxylic acid. In part b and c, these are secondary alcohols, so they will be oxidised to ketone.
EXPERT ANSWER According to question, light has wavelength, = 646 nm = 646 * 10-9 m. distance of screen from slits, D = 8.75 m Distance between central bright fringe and second order bright fringe is, y = 5.16 cm = 5.16 * 10-2 m. i.e for n = 2 Since, for maxima Where d is distance between …
14. Light with a wavelength of 646 nm passes through two slits and forms an interference pattern on a screen 8.75 m away. The distance between the central bright fringe and the second-order bright fringe is 5.16 cm. What will be the distance between the central bright fringe and the third-order minimum! A) 0.13 m B) 0.18 m C) 0.24 m D) 0.34 m E) 0.47 m Read More »
Imagine that you are in charge of allocating funding from the national science foundations to build one or more proposed observations. For each of the pair below determine which one would be better to fund and clearly explain your reasoning. EXPERT ANSWER Its better to fund the project kili. Project Kili involves setting up a visible …
i. Project Fili: an X-ray telescope (λ≈0.1−1 nm) in Antarctica for studying black holes. ii. Project Kili: a visible-light telescope (λ≈400−700 nm) in Hawai’i for studying galaxy formation. Read More »
EXPERT ANSWER 𝟏)𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧:-𝐆𝐢𝐯𝐞𝐧 𝐝𝐚𝐭𝐚:-𝐃𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭𝐢𝐚𝐭𝐞 𝐛𝐞𝐭𝐰𝐞𝐞𝐧 𝐟𝐨𝐫𝐦𝐚𝐥 𝐚𝐧𝐝 𝐢𝐧𝐟𝐨𝐫𝐦𝐚𝐥 𝐮𝐬𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐭𝐞𝐬𝐭𝐢𝐧𝐠. 𝐅𝐨𝐫𝐦𝐚𝐥 𝐮𝐬𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐭𝐞𝐬𝐭𝐢𝐧𝐠:-𝐅𝐨𝐫𝐦𝐚𝐥 𝐮𝐬𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐭𝐞𝐬𝐭𝐢𝐧𝐠 𝐮𝐬𝐞𝐬 𝐚 𝐫𝐞𝐬𝐞𝐚𝐫𝐜𝐡 𝐟𝐚𝐜𝐢𝐥𝐢𝐭𝐲, 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐞 𝐰𝐢𝐭𝐡 𝐨𝐧𝐞-𝐰𝐚𝐲 𝐦𝐢𝐫𝐫𝐨𝐫𝐬 𝐟𝐨𝐫 𝐨𝐛𝐬𝐞𝐫𝐯𝐚𝐭𝐢𝐨𝐧.• 𝐓𝐡𝐞 𝐭𝐞𝐬𝐭 𝐢𝐬 𝐮𝐬𝐮𝐚𝐥𝐥𝐲 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐞𝐝 𝐨𝐧 𝐚 𝐥𝐢𝐯𝐞 𝐬𝐢𝐭𝐞 𝐨𝐫 𝐚 𝐡𝐢𝐠𝐡-𝐟𝐢𝐝𝐞𝐥𝐢𝐭𝐲 𝐞𝐥𝐞𝐜𝐭𝐫𝐨𝐧𝐢𝐜 𝐩𝐫𝐨𝐭𝐨𝐭𝐲𝐩𝐞 𝐚𝐧𝐝 𝐨𝐟𝐭𝐞𝐧 𝐫𝐞𝐬𝐮𝐥𝐭𝐬 𝐢𝐧 𝐚 𝐟𝐨𝐫𝐦𝐚𝐥 𝐮𝐬𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐫𝐞𝐩𝐨𝐫𝐭.• 𝐅𝐨𝐫𝐦𝐚𝐥 𝐭𝐞𝐬𝐭𝐢𝐧𝐠 𝐢𝐬 𝐛𝐞𝐬𝐭 𝐮𝐬𝐞𝐝 𝐟𝐨𝐫 𝐥𝐚𝐫𝐠𝐞 𝐨𝐫𝐠𝐚𝐧𝐢𝐳𝐚𝐭𝐢𝐨𝐧𝐬 …
2. Define USABILITY as the standard set by ISO (9241-11) and discuss the key properties or specifications contained in the definition with pragmatic scenarios 3. Identify any four (4) factors that can be used to quantify software userfriendliness for usability testing. 4. Evaluation is concerned with gathering data about the usability of a design or product by a specified group of users for a particular activity within a specified environment or work context. As an evaluation expert, discuss four evaluation approaches you will recommend for analysis throughout the design processes and under what favorable scenario can each approaches be executed. 5. In HCI, usability requires project management and careful attention to requirements analysis and testing for clearly defined objectives. Discuss four (4) major reasons why requirements analysis needs careful attention. Read More »