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» » WAEC 2018 Physics Verified Questions And Answers

Friday, 20 April 2018

WAEC 2018 Physics Verified Questions And Answers



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   PHYSICS OBJ LOADING..

VERIFIED-PHYSICS-OBJ
1-10:CAABACBADB
11-20:ACCCDABDCC
21-30:DBADCABCAB
31-40:CCBBCCBABD
41-50: BDCDBABBDC


NIGERIA PHYSICS THEORY QUESTIONS PAPER PICTURES



 PHYSICS  ANSWERS LOADING..


1a*
Strain is
force (a part of one’s body or oneself) to make an unusually great effort.
2 )
i ) quantity of charge
ii) nature of element
iii ) Time
2biThe boiling point of a liquid Is the point at which The vapour pressure is equal To atmospheric pressure
3)
-Diamagnetic material
-Paramagnetic material
-Ferromagnetic material
4a)An intrinsic semiconductor, also called an undoped semiconductoror i-type semiconductor, is a pure semiconductor without any significant dopant species present. The number of charge carriers is therefore determined by the properties of the material itself instead of the amount of impurities.
7(a). LASER stands for Light Amplification by Stimulated Emission of Radiation.
(b). A laser is a device that emits a beam of coherent light through an optical amplification process.
*10a*
the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge, typically accompanied by interference between the wave forms produced.
10b
Critical angle: This is the angle of incidence in the denser medium when the angle of refraction in the less dense medium is 90°
*10bi*
the angle of incidence beyond which rays of light passing through a denser medium to the surface of a less dense medium are no longer refracted but totally reflected.
12a)
binding energy is the minimum energy that would be required to disassemble the nucleus of an atom into its component parts. These component parts are neutrons and protons, which are collectively called nucleons


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