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 1161:

  Which of the following media allow the transmission of sound waves through them?

  I. air

  II. liquid

  III. solids

   

  Options:
  A) I and II only
  B) I and III only
  C) II and III only
  D) I, II and III
  Show Answer
  The correct answer is D .
• Question 1162:

  

  Two mirrors of the same length are arranged as shown above, a ray of light NO strikes the system at O and emerges along PQ. The emergent ray has been deviated through

  Options:
  A) 220 degrees
  B) 200 degrees
  C) 210 degrees
  D) 180 degrees
  E) 230 degrees
  Show Answer
  The correct answer is D .
• Question 1163: The blade of a hoe feel colder to touch in the morning than the wooden handle because the Options:
  A) handle is a better conductor of heat than blade
  B) handle contains stored energy in form of heat
  C) blade is a better conductor of heat than the handle
  D) blade is placed at a lower temperature than the heat
  Show Answer
  The correct answer is C .
• Question 1164:

  A 500W heater is used to heat 0.6kg of water from 25^oC to 100^oC in t₂ seconds. If another 1000W heater is used to heat 0.2kg of water from 10^oC to 100^oC in t, seconds, find $\frac{t_1}{t_2}$

  Options:
  A) 50
  B) 5
  C) 5/4
  D) 1/5
  Show Answer
  The correct answer is D .
• Question 1165:

  When three coplanar non-parallel are in equilibrium.i. they can be represented in magnitude and direction by the three sides of a triangle taken in order. ii. the lines of action meet at a point. iii. the magnitude of any one force equals the magnitude of the resultant of the other two forces. iv. any one force is the equivalent of the other two. Which of the following statements above are correct?

  Options:
  A) i and ii only
  B) i and iii only
  C) i, ii, iii, and iv
  D) none of them
  Show Answer
  The correct answer is A .
• Question 1166: To produce a parallel beam of light from a concave mirror, the distance at a which the lamp should be placed from the mirror is equal to Options:
  A) the focal length
  B) two times the focal length
  C) the distance of the image
  D) two times the radius of curvature
  Show Answer
  The correct answer is A .
• Question 1167:

  The following are some units

  I. Ns

  II. Non

  III. Nm${}^{-2}$

  IV. J°K${}^{-1}$

  V. JKj${}^{-1}$

  What are the units of latent heat?

  Options:
  A) I
  B) II
  C) III
  D) V
  Show Answer
  The correct answer is D .
• Question 1168:

  In order to view the sun, the most suitable instrument to use is?

  Options:
  A) helioscope
  B) telescope
  C) stroboscope
  D) sun meter
  Show Answer
  The correct answer is A .
• Question 1169: When the length I of a piece of wire under constant tension is varied, the relationship of the frequency of the vibration f$\alpha$/ is Options:
  A) f$\alpha$/
  B) f$\alpha \frac{1}{I^2}$
  C) f $\alpha \sqrt{I}$
  D) f$\alpha \frac{1}{1}$
  Show Answer
  The correct answer is D .
• Question 1170:

  

  A 50kg block is dropped from a point 10cm above as shown in the fig above. if the force constant of the spring is 4.0 x 10⁴Nm^-1, find the maximum compression of the spring [g = 10ms^-2]

  Options:
  A) 1.25m
  B) 0.50m
  C) 0.25m
  D) 0.05m
  Show Answer
  The correct answer is B .