by Sunday | Aug 28 | Physics WAEC
Two blocks of the same dimension, one steel and the other wooden are dropped simultaneously from the same height. If they fall freely neglecting air resistance the A. Two blocks hit the ground simultaneously because they have the same acceleration B. Two blocks reach...
by Sunday | Aug 28 | Physics WAEC
A ball of mass 0.1kg approaching a tennis player with a velocity of 10ms−¹, is hit back in the opposite direction with a velocity of 15ms−¹. If the time of impact between the racket and the ball is 0.01s, calculate the magnitude of the force with which the ball is hit...
by Sunday | Aug 28 | Physics WAEC
A. 0.8rads−¹ B. 2 rads−¹ C. 4 rads−¹ D. 8 rads−¹ E. 16 rads−¹ Correct Answer: Option C – 4 rads−¹ Explanation V=rw, 8=2w, w=8/2= 4rad/s−¹
by Sunday | Aug 28 | Physics WAEC
A. 17.3ms−² B. 20ms−² C. 24.5ms−² D. 125ms−² E. 200ms−² Correct Answer: Option B = 20ms−² Explanation v²=u²+2as = 0+2×(25−5) v²=0+20×20=400; v = √400 =20ms−²
by Sunday | Aug 28 | Physics WAEC
A. De Broglie’s law B. Heisenberg’s uncertainty principle C. Compton effect D. Frank-Hertz experimental law E. Wave-particle paradox Correct Answer: Option B – Heisenberg’s uncertainty principle
by Sunday | Aug 28 | Physics WAEC
Two radioactive elements X and Y have half-lives of 100 and 50 years respectively. Samples of X and Y initially contain equal number of atoms. What is the ratio of the number of the remaining atoms of X to that of Y after 200 years? A. 4:1 B. 3:1 C. 1:1 D. 1:2 E. 1:4...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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