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4691

A semiconductor is formed by?

  • A. co-ordinate bonds
  • B. electrovalent bonds
  • C. a substance free of bonds
  • D. covalent bonds
View Answer & Discuss (2) JAMB 2022
4692

One of the following is a scalar quantity?

  • A. weight
  • B. momentum
  • C. potential energy
  • D. displacement
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4693

The mercury column in the barometer at notational  atmospheric pressure has a height of?

  • A. 0.76 cm at see level
  • B. 760 cm at sea level
  • C. 7.6 cm at sea level
  • D. 76 cm at sea level
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4694

If an object just begins to slide on a surface inclined at 30º to the horizontal,the coefficient of friction is?

  • A. √3
  • B. \(\frac{√3}{2}\)
  • C. \(\frac{1}{√2}\)
  • D. \(\frac{1}{√3}\)
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4695

The property of wave shown in the diagram above is?
 

  • A. Diffraction
  • B. Refraction
  • C. Polarisation
  • D. Interference
View Answer & Discuss (3) JAMB 2023
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