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 1001: The stylus of a phonograph record exerts a force of 7.7 x 10^-2N on a groove of radius 10^-5m. Compute the pressure exerted by the stylus on the groove Options:
  A) 2.45 x 10⁸ Nm^-2
  B) 3.45 x 10⁸ Nm^-2
  C) 4.90 x 10⁸ Nm^-2
  D) 2.42 x 10⁸ Nm^-2
  Show Answer
  The correct answer is A .
• Question 1002: A simple cell with mercury-amalgamated zinc electrode prevents Options:
  A) local actions
  B) polarization
  C) buckling
  D) degradation
  Show Answer
  The correct answer is A .
• Question 1003: A reservoir 500 m deep is filled with a fluid of density 850 kgm^-3. If the atmospheric pressure is 1.05 x 10⁵ Nm^-2, the pressure at the bottom of the reservoir is.
  [g = 10ms^-2] Options:
  A) 4.72 x 10⁶ Nm^-2
  B) 4.36 x 10⁶ Nm^-2
  C) 4.28 x 10⁶ Nm^-2
  D) 4.25 x 10⁶ Nm^-2
  Show Answer
  The correct answer is D .
• Question 1004:

  If a source of solid is moving, a stationary listener will hear a sound of different frequency. This is called?

  Options:
  A) doppler effect
  B) resonance
  C) ultra sound
  D) rarefaction
  Show Answer
  The correct answer is A .
• Question 1005: In what range of temperature is the expansion of water anomalous? Options:
  A) +208^oC to +212^oC
  B) -80^oC + -76^oC
  C) -4^oC to 0^oC
  D) +96^oC to +100^oC
  E) 0^oC to +4^oC
  Show Answer
  The correct answer is E .
• Question 1006: The atmospheric pressure due to water is 1.3 x 10⁶Nm^-2. What is the total pressure at the bottom of an ocean 10m deep? [Density of water = 1000kgm^-3, g = 10ms^-2] Options:
  A) 1.3 x 10⁷Nm^-2
  B) 1.4 x 10⁶Nm^-2
  C) 1.4 x 10⁵Nm^-2
  D) 1.0 x 10 ⁵Nm^-2
  Show Answer
  The correct answer is B .
• Question 1007: The point beyond which a stretched spring does not return to its original length is called the Options:
  A) breaking point
  B) elastic limit
  C) spring constant
  D) elasticity point
  E) release point
  Show Answer
  The correct answer is B .
• Question 1008:

  The velocities of light in air and glass are 3.0 x 10${}^8$ms${}^{-1}$ and 2.0 x 10${}^8$ms${}^{-1}$ respectively. If the angle of refraction is 30º, the sine of the angle of incidence is?

  Options:
  A) 0.33
  B) 0.50
  C) 0.67
  D) 0.75
  Show Answer
  The correct answer is D .
• Question 1009:

  

  If the system above is in equilibrium, the tension in the string Q is

  Options:
  A) 11N
  B) 9N
  C) 4N
  D) 6N
  Show Answer
  The correct answer is B .
• Question 1010: If an object is placed in front of two mirrors inclined at 90^o, how many images will be formed? Options:
  A) five
  B) four
  C) three
  D) two
  Show Answer
  The correct answer is C .