Waec 2025 Physics Question 11

Practice essay / theory question 11 from the 2025 Waec Physics examination. This question covers Statistics .

Waec 2025 Physics Essay / Theory
Topic: Statistics
Question 11 WAEC • 2025 • PHYSICS • essay

(a)(i) Give two similarities between photoelectric emission and evaporation. (ii) Mention two differences between photoelectron and photon. (b) A \( 4.0 \mu F \) capacitor is connected in series with a \( 400 \Omega \) resistor in a circuit. The connection is placed across a source of emf of root-mean-square value of 60 V alternating frequency \( \left(\frac{1500}{\pi} \mathrm{~Hz}\right) \). Calculate the: (i) impedance of the circuit; (ii) potential difference across the capacitor. \( [x=3.14] \). (c)(i) State three characteristics of magnetic lines of force. (ii) What is a solenoid?

Question Parts

( a )
(i) Give two similarities between photoelectric emission and evaporation.
( b )
(ii) Mention two differences between photoelectron and photon.
( c )
A \( 4.0 \mu F \) capacitor is connected in series with a \( 400 \Omega \) resistor in a circuit. The connection is placed across a source of emf of root-mean-square value of 60 V alternating frequency \( \left(\frac{1500}{\pi} \mathrm{~Hz}\right) \). Calculate the: (i) impedance of the circuit; (ii) potential difference across the capacitor. \( [x=3.14] \).
( d )
(i) State three characteristics of magnetic lines of force. (ii) What is a solenoid?

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About This Question

This is Waec 2025 Physics Question 11. It is one of the essay questions from the 2025 Waec Physics examination.

The question covers Statistics .

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