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Tuesday, 03 November 2026
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Physics Past Questions and Answers

Jamb 2015 Physics Questions

Question 51:
What is the S.I unit of relative density?
  • A Kg m<sup style='font-size: smaller;'>-2</sup>
  • B Kg m<sup style='font-size: smaller;'>2</sup>
  • C Kg cm<sup style='font-size: smaller;'>3</sup>
  • D Has no S.I unit
View Answer & Explanation
Question 52:
The dimension of universal gravitational constant is..........?
  • A \( M­^{–1}L^3 T^{–2} \)
  • B ML<sup style='font-size: smaller;'>3</sup>T<sup style='font-size: smaller;'>2</sup>
  • C ML<sup style='font-size: smaller;'>3</sup>
  • D MLT<sup style='font-size: smaller;'>-2</sup>
View Answer & Explanation
Question 53:
A good electric cell should have the following except
  • A A minimum of polarization effect
  • B A long life
  • C A cheap and safe electrolytes
  • D Cost and dangerous of the cell
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Question 54:
The r.m.s value of a supply voltage is quoted at 200v. What is the approximate peak value of the voltage?
  • A 200volts
  • B 300volts
  • C 283volts
  • D 250volts
View Answer & Explanation
Question 55:
Heat transfer by convection will take place is one the following substance.
  • A Stone
  • B Wood
  • C Mercury
  • D Water
View Answer & Explanation