by Sunday | Nov 4 | Physics JAMB
A. 10 cm B. 16 cm C. 5 cm D. 14 cm Correct Answer: Option D – 14 cm Explanation Magnification = Length of camera/distance of object from pin hole m = 12/60 = 0.2 Also magnification m = Height of image/Height of object ∴ Height of image = m × height of object =...
by Sunday | Nov 4 | Physics JAMB
A. 80.0% B. 76.6% C. 66.7% D. 60.7% Correct Answer: Option C – 66.7%
by Sunday | Nov 4 | Physics JAMB
A. kgm B. Nm C. Jm D. µm−1 Correct Answer: Option B – Nm Explanation Moment of a force is the product of a force and the perpendicular distance from the line of action of the force Moment = force × distance = N × m =...
by Sunday | Nov 3 | Physics JAMB
A. protons B. electrons C. ions D. neutrons Correct Answer: Option D – neutrons
by Sunday | Nov 3 | Physics JAMB
A. Balance wheel of a watch B. Construction of steel rail lines C. Construction of large steel bridges D. Fitting of tyres on wheels Correct Answer: Option A – Balance wheel of a watch Explanation Thermal expansion of a solid is majorly advantageous in the use...
by Sunday | Nov 3 | Physics JAMB
A. A compressor B. A refrigerator C. Air blower D. Air conditioner Correct Answer: Option D – Air conditioner Explanation Compressor is an instrument to supply air or other gas at increased pressure Refrigerator is an appliance to keep things cold Air blower is...
by Sunday | Nov 3 | Physics JAMB
A. 1ω B. 9ω C. 3ω D. 0.33ω Correct Answer: Option A – 1ω Explanation Resistor connected in a parallel have an equivalence given by 1/Reff = 1/3 + 1/3 + 1/3 = (1+1+1)/3 = 3/3 = 1 Reff =...
by Sunday | Nov 3 | Physics JAMB
A. 80.0% B. 76.6% C. 66.7% D. 60.7% Correct Answer: Option C – 66.7% Explanation Efficiency = MA/V.R x 100 V.R = number of pulleys = 6 ma = Load/Effort = 200/50 = 4 Effiecieny = 4/6 × 100 =...
by Sunday | Nov 3 | Physics JAMB
A. Molecules of a liquid are stationary B. Brownian motion is evidence of particle nature of matter C. Matter is made up of molecules D. The molecules of matter are in constant motion Correct Answer: Option A – Molecules of a liquid are stationary Explanation...
by Sunday | Nov 3 | Physics JAMB
A. 12.0% B. 25.0% C. 33.3% D. 75.0% Correct Answer: Option C – 33.3% Explanation Internal resistance determines the maximum current that can be supplied Efficiency = r/R × 100 = 2/6 × 100 =...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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