by Sunday | Nov 4 | Physics JAMB
A. Zener material B. P-n junction C. n-type D. p-type Correct Answer: Option C = n-type Explanation When silicon is doped with a trivalent atom. A p-type semi-conductor will be formed when silicon is doped with a pentavalent atom such as arsenic, a n-type...
by Sunday | Nov 4 | Physics JAMB
A. 5 B. 4 C. 3 D. 2 Correct Answer: Option C – 3 Explanation When two mirrors are inclined at an angle θ, the number of images formed, n = 360/θ − 1 ∴ since θ = 90° ∴ 360/θ − 1 = 4 − 1 =...
by Sunday | Nov 4 | Physics JAMB
A. diffusion B. osmosis C. capillarity D. surface tension Correct Answer: Option C – capillarity Explanation Capillarity is the tendency of a liquid to rise or fall in a narrow tube and it explains why a blotting paper absorbs...
by Sunday | Nov 4 | Physics JAMB
A. 100 πrads−¹ B. 200 πrads−¹ C. 50 πrads−¹ D. 400 πrads−¹ Correct Answer: Option A – 100 πrads−¹ Explanation 1 cycle = 3600 = 2π rad ∴ 50 cycle = 2 π rad × 50 = 100 πrad ∴ = angular speed = 50 cycles per seconds = 100 π...
by Sunday | Nov 4 | Physics JAMB
A. thermometer B. hydrometer C. spring balance D. beaker Correct Answer: Option B – hydrometer Explanation Thermometer is used to measure temperature Hydrometer is used to measure relative density of liquid. Spring balance is used to measure the weight of an...
by Sunday | Nov 4 | Physics JAMB
A. An electron B. A β – particle C. β – particle D. proton Correct Answer: Option D – proton Explanation Nucleus of atom is made up of neutron and proton
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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