WAEC GCE 2023 PHYSICS ANSWERS

PHYSICS SOLUTIONS 

PHYSICS OBJ
01-10: AAACDDBCBD
11-20: ACDBCABACA
21-30: BBAABABCCA
31-40: CDABDBAADC
41-50: BBACCCDDDB

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(1)

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(2)

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(3)

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(4)

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(5)

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(6a)
(i) Optical fibers are widely used in endoscopic procedures for medical imaging
(ii) They are utilized in laser surgery for delivering laser light precisely to target tissue
(iii) Optical fibers play a key role in various diagnostic imaging techniques such as Optical Coherence Tomography (OCT).

(6b)
(i) Optical fibers are extensively used in military communication systems.
(ii) They serve as the backbone for various fiber optic sensor systems used in defense applications.
(iii) They are employed in the development of underwater surveillance systems

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(7a)
A perfect blackbody is an ideal object that absorbs all incident radiation and emits radiation at all wavelengths.

(7b)
(i) The peak wavelength shifts towards shorter wavelengths as the temperature increases (known as Wien’s displacement law).
(ii) The total intensity of radiation increases with increasing temperature (known as Stefan-Boltzmann law).

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(8)

 

 

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(9)

 

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(10)

 

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