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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
4306

In an experiment in which molten naphthalene is allowed to cool, the cooling curve i n the figure was obtained. The temperature 80\(^o\)C is known as the 

  • A. cooling temperature
  • B. boiling point
  • C. melting point
  • D. vaporization point
View Answer & Discuss (4) JAMB 2020
4307

In the figure, the value of R is 

  • A. 3\(\Omega\) 
  • B. 6\(\Omega\) 
  • C. 4\(\Omega\) 
  • D. 5\(\Omega\) 
View Answer & Discuss (5) JAMB 2020
4308

Which of the following instruments consumes the highest current?

I. Electric iron

II. Television set

III. Torch light

IV. Immersion heater

250v

220v

6v

110v

1kW

110W

30W

500W

2

  • A. I
  • B. II
  • C. III
  • D. IV
View Answer & Discuss (4) JAMB 2020
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4309

In which of the following diagrams is the length of the tube equal to one wavelength? 

  • A. a
  • B. b
  • C. c
  • D. d
View Answer & Discuss (9) JAMB 2020
4310

Which of the following pairs is part of the electromagnetic spectrum? 

I. Radio waves

II. sound waves

III. Gamma rays

IV. water waves

  • A. I and II
  • B. III and IV
  • C. I and III
  • D. II and IV
View Answer & Discuss (1) JAMB 2020
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