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Showing posts from December, 2022

Full CBT Rollout for SSCE Postponed to 2027 by WAEC

 Abuja — The West African Examinations Council (WAEC) has postponed the full implementation of the computer-based test (CBT) format for the 2026 Senior School Certificate Examination (SSCE) until 2027, according to a statement released at the council’s 63rd annual meeting in Umuahia, Abia State.  Hajia Binta Abdulkadir, Chairman of WAEC’s Nigeria National Committee, explained that the 2026 May/June edition will now serve as a pilot phase — allowing candidates to sit for either the traditional paper-and-pen test or the digital format. She emphasized that no student will be disadvantaged by the transition.  The delay follows widespread concern over the readiness of many schools, particularly in rural areas, for full digital exams. Many institutions lack adequate computers, reliable electricity, internet connectivity, and trained personnel—factors WAEC and the Federal Ministry of Education say are essential for a successful rollout.  To facilitate the switch, WAEC co...
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How to calculate velocity of sound wave at a given temperature

  Question 1 A source of sound wave of frequency 660Hz emits waves of wavelength 0.12m in air at 40 o C. What is the velocity of sound wave in air at this temperature? What would be the wavelength of sound wave from the source in air at 70 o C?   Answer Frequency = f = 660Hz Wavelength= λ = 0.12m Temperature = 40+273 = 313K Velocity of sound wave at 40 0 C V = fλ = 660 x0.12 =79.2m/s Wavelength of wave at 70 0 C Note: to find the wavelength, we must find the velocity of the sound wave at 70 0 C. Velocity of sound wave is directly proportional to the square root of its temperature in kelvin. V 1 /V 2 = √T 1 /√T 2 V 1 = 79.2m/s T 1 = 313K T 2 = 70 + 273 = 343K 79.2/V 2 = √313/√343 79.2 2 /(V 2 ) 2 = 313/343 313(V 2 ) 2 = 79.2 2 x 343= 2151515.52 (V 2 ) 2 = 2151515.52/313 (V 2 ) 2 = 6873.9 V 2  = √6873.9   = 82.9m/s Since V=fλ then 82.9 = 660 x λ .λ = 82.9/660 =0.13m   Question II A sound wave of v...
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How to find Your Youtube Channel Niche

The creator’s niche is the general idea or topic of what the content is all about. It gives the audience a general idea of what they will view by clicking on a youtube channel. Examples of niches on Youtube include sports, comedy, fitness, cooking, business etc. A youtube niche that you are passionate about is the best. You should also be specific in your creation of content because the more specific a channel is better. And such channels get more recommendations on Youtube. So, you must make sure that you explore the best niche for your channel. The following tips can help you get the best niche: choose a niche which gives you the best view check if the niche is very competitive choose a niche that allows you to make more videos chose a niche you are passionate about Choose a niche which gives you the best views  Finding a niche is not an easy task. It takes time and energy because you will need to experiment with more options. You will need to post videos of the different...
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