by Sunday | Nov 10 | Physics JAMB
A. upthrust is equal to the weight of the ball B. ball accelerate uniformly C. upthrust is equal to the velocity of the ball D. velocity is uniform Correct Answer: Option D = velocity is uniform
by Sunday | Nov 10 | Physics JAMB
A. 1.5 ms‾¹ B. 1.4 ms‾¹ C. 2.1 ms‾¹ D. 1.7 ms‾¹ Correct Answer: Option D = 1.7 ms‾¹ Explanation Sum of momentum before the collision M1U1 + M2U2 12 x 4.2 + 18 x 0 12 x 4.2 = 50.4 Sum of momentum after collision (m1 + m2)v = (12 + 18)v = 30v V = 50.4/30 =...
by Sunday | Nov 10 | Physics JAMB
A. 100 m B. 50m C. 32 m D. 18 m Correct Answer: Option D = 18 m Explanation From S = ut + ½at² S = ½at², since U = 0 Let S5 = distance in 5 seconds = ½ x 4 x 5² = 2 x 25 = 50m S4 = distance covered in 4 seconds = ½ x 4 x 4² = 2 x 16 = 32m Distance covered in the fifth...
by Sunday | Nov 10 | Physics JAMB
A. a p-type semiconductor B. an n-type semiconductor C. an insulator D. an intrinsic semi-conductor Correct Answer: Option B – an n-type semiconductor Explanation When a pentavalent (5 outer electron)atom is added to a pure semiconductor, there is extra...
by Sunday | Nov 10 | Physics JAMB
A. germanium B. silicon C. grapefruit D. copper Correct Answer: Option D = copper Explanation Metals are good conductors due to the presence of free electrons
by Sunday | Nov 10 | Physics JAMB
A. β – rays are produced B. holes are produced C. x – rays are produced D. electrons leave a hot element Correct Answer: Option D – electrons leave a hot element Explanation Thermionic emission is ejection of an electron from a metal surface as a...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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