Physical Sciences MCQs (Set 1)

31. The first scientist who weighed the earth was ___________.

  • A. Galileo
  • B. Newton
  • C. Cavendish
  • D. Thomson
View Answer
Correct Answer:
C. Cavendish

Explanation:
……

32. Superconductivity is due to _____________.

  • A. Electrons
  • B. Protons
  • C. Pair of electrons
  • D. Neutrons
View Answer
Correct Answer:
C. Pair of electrons

Explanation:
……

33. Superconductivity was discovered by _____________.

  • A. H.K. Onnes
  • B. Thomson
  • C. Einstein
  • D. Faraday
View Answer
Correct Answer:
A. H.K. Onnes

Explanation:
……

34. Permanent magnets can be made from ___________.

  • A. Cobalt
  • B. Aluminum
  • C. Zinc
  • D. Lead
View Answer
Correct Answer:
A. Cobalt

Explanation:
……

35. Which one of the following colours has the longest wavelength?

  • A. Yellow
  • B. Blue
  • C. Red
  • D. Green
View Answer
Correct Answer:
C. Red

Explanation:
……

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