Search SchoolNGR

Tuesday, 18 August 2026
Register . Login

Physics Past Questions and Answers

Topic: Structure of Matter and Kinetic Theory

Jamb Physics Questions - Structure of Matter and Kinetic Theory

Question 46:
If a beaker is filled with water it is observed that the surface of the water is not horizontal at the glass-water interface. This behavior is due to
  • A Friction
  • B Viscosity
  • C Surface tension
  • D Evaporation
View Answer & Explanation
Question 47:
A radioactive sample initially contains N atoms. After three half-lives the number of atoms that have disintegrated is
  • A \(\frac{N}{8}\)
  • B \(\frac{3N}{8}\)
  • C \(\frac{5N}{8}\)
  • D \(\frac{7N}{8}\)
View Answer & Explanation
Question 48:
The product PV where P is pressure and V is volume has the same unit as
  • A Force
  • B Power
  • C Energy
  • D Accelaration
View Answer & Explanation
Question 49:
Which of the following symbolic representations is correct for an atom X with 22 electrons and 43 neutrons?
  • A \(^{43}_{22}X\)
  • B \(^{22}_{43}X\)
  • C \(^{65}_{43}X\)
  • D \(^{65}_{22}X\)
View Answer & Explanation
Question 50:
A thin film of liquid is trapped between two glass plates. The force required to pull the plates apart will increase if the
  • A Surface tension of the liquid is reduced
  • B Perpendicular distance between the plates is increased
  • C Area of the liquid surface in contact with the plates is increased
  • D Pressure of the air is decreased
View Answer & Explanation