Physics Exam Past Questions and Answers | JAMB, WAEC and NECO

Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.

• Question 261: Which of the following scientists postulated that moving particles exhibit wave properties? Options:
  A) Ernest Rutherford
  B) Erwin Schroedinger
  C) Frank Hertz
  D) Louis de Broglie
  E) Werner Heisenberg.
  Show Answer
  The correct answer is D .
• Question 262: As a positively charge rod is brought nearer to the top cap of a positively charged gold leaf electroscope, the divergence of the leaves will Options:
  A) decrease to zero
  B) steadily increase
  C) decrease to zero and then increase
  D) remain constant
  E) increase to a maximum and then decrease
  Show Answer
  The correct answer is B .
• Question 263:

  

  In a light experiment with a convex lens a student plotted a graph as shown above of the reciprocal of object distance (1)/u against the reciprocal of image distance (1)/v . the focal length of the lens is given as

  Options:
  A) slope of line PQ
  B) Reciprocal of either OP or OQ
  C) Length OP or OQ
  D) area under the graph E ratio OP/OQ
  Show Answer
  The correct answer is B .
• Question 264:

  

  The diagram above shows a maximum and minimum thermometer divided into three portions P, Q and R. Which of the following is true about the respective content of P,Q and R

  Options:
  A) Alcohol, mercury and alcohol
  B) Air, alcohol and mercury
  C) Mercury, alcohol and mercury
  D) Air, mercury and alcohol
  Show Answer
  The correct answer is A .
• Question 265: Which of the following is common to evaporation and boiling? They Options:
  A) take place at any temperature
  B) are surface phenomena
  C) involve change of state
  D) take place at a definite pressure
  Show Answer
  The correct answer is C .
• Question 266: If a given mass at constant pressure obeys the relation...volume is proportional to the absolute temperature...the gas is said to obey Options:
  A) Hooke's Law
  B) Boyle's Law
  C) Dalton's Law
  D) Charles' Law
  E) Newton's Law
  Show Answer
  The correct answer is D .
• Question 267: When a telescope is in normal use, the final image is at Options:
  A) Infinity
  B) The focus
  C) The radius of curvature
  D) The near point
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  The correct answer is A .
• Question 268: An object of mass 100g projected vertically upwards from the ground level has a velocity of 20ms^-1 at a height of 10m. calculate its initial kinetic energy at the ground level.[g = 10ms^-2, neglect air resistance] Options:
  A) 10 J
  B) 20 J
  C) 30 J
  D) 50 J
  Show Answer
  The correct answer is C .
• Question 269: Natural radioactivity is the random spontaneous disintegration of the nuclei of heavy isotopes of certain elements with the emission of Options:
  A) $\alpha$, X, and $\beta$
  B) $\alpha$, $\beta$ and $\gamma$-rays
  C) X, $\alpha$, $\gamma$-ray
  D) $\alpha$, $\beta$ and X-rays
  Show Answer
  The correct answer is B .
• Question 270: A sealed flask contains 600cm³ of air at 27°C and is heated to 35°C at constant pressure. The new volume is? Options:
  A) 508 cm³
  B) 516 cm³
  C) 608 cm³
  D) 616 cm³
  Show Answer
  The correct answer is D .