2023 WAEC GCE Physics (Essay & OBJ) Answers [7th December]
Get Free Live 2023 WAEC GCE November/December (2nd Series) Physics (PHY) Questions and Answers for Private Candidates Free of Charge | WAEC GCE Nov/Dec Free Physics Questions and Answers (Essay & OBJ) EXPO Room (7th December, 2023).
WAEC GCE AUGUST/SEPTEMBER 2023 FREE PHYSICS (PHY) QUESTION AND ANSWER ROOM [PRIVATE CANDIDATES]
 
Thursday 7th December, 2023
Physics 2 (Essay) – 9:30am – 11:00am
Physics 1 (Objective) – 11:00am – 12:15pm
Physics 3 (Alternative to Practical Work) – 45mins 2:00pm – 4:45pm

A. 2023 WAEC GCE PHYSICS OBJECTIVES (OBJ) ANSWERS | 7TH DECEMBER, 2023

1-10: AAACDDBCBD
11-20: CCDBCABACA
21-30: BBAABABBCA
31-40: DDDDDBAADC
41-50: BCACCCBDDB

 

B. 2023 WAEC GCE PHYSICS ESSAY (THEORY) ANSWERS

(1)


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(2)


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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 idealized object that absorbs all incident electromagnetic radiation, regardless of wavelength or angle, and emits radiation.

(7b)
(PICK ANY TWO)
(i) As temperature increases, the peak wavelength of emission decreases.
(ii) The intensity of radiation increases with temperature, with a higher temperature blackbody emitting more radiation at all wavelengths.
(iii) The graph shows a continuous spectrum, indicating that the blackbody emits radiation at all wavelengths.
(iv) At lower temperatures, the intensity is concentrated in longer wavelengths, while at higher temperatures, it extends to shorter wavelengths.

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(8)


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(9)


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(10)


C. 2023 WAEC GCE PHYSICS ALTERNATIVE TO PRACTICAL ANSWERS | 7TH DECEMBER, 2023

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