NECO 2020 Physics Practical Solution Answer – Oct/Nov Expo

WELCOME TO AYOSTUFFS BEST EXAM EVER ===================================== KEEP REFRESH THIS PAGE IN EVERY 5MIN =================================== NECO PHYSICS PRACTICAL SOLUTIONS (1a) Tabulate: S/N: 1|2|3|4|5| M|g: 40.0|35.00|30.00|25.00|20.00| θ°: 41.80|35.70|30.00|24.60|19.47| ϕ=(90-θ°): 48.20|54.30|60.00|65.40|70.53| Cosϕ; 0.6665|0.5835|0.5000|0.4163|0.3333| (1ax) Graph [https://i.imgur.com/0tPTIDt.jpg] (1axi) Slope , S=Δm|g/ΔCosϕ =(40-20)g/0.6665-0.3333 S= 20g/0.3332=60.024g (1axii) K=s/2 =60.024g/g= 30.012g (1axiii) Precautions: (i) I avoided error due to parallax when reading from the protector (ii) I ensured that the force board is firmly and correctly clamped to the retort stand (1bi) - The have the same magnitude/size - They can be obtained/calculated by the same means (1bii) T²= 9²+12² T= √81+144 T= √225 T= 15N ================================================ (3a) Tabulate: S/N: 1|2|3|4|5| R/Ω: 2.00|4.00|6.00|8.00|10.00| L/cm: 50.00|66.70|75.00|80.00|83.30| B/Ω^-¹: 0.50...