Jamb 2000 Physics Past Questions And Answers

Note: You Can Select Post UTME Schools Name Below The Exam Year.
1

If the fraction of the atoms of a radioactive material left after 120years is 1/64, what is the half-life of the material?

  • A. 24 years
  • B. 20 years
  • C. 10 years
  • D. 2 years
View or Post an Explanation 276 (0)JAMB 2000
2

A travelling wave moving from left to right has an amplitude of 0.15m, a frequency of 550Hz and a wavelength of 0.01m. The equation describing the wave is

  • A. y = 0.15 sin 200π(x - 5.5t)
  • B. y = 0.15 sin π(0.01x - 5.5t)
  • C. y = 0.15 sin 5.5π(x - 200t)
  • D. y = 0.15 sin π(550x - 0.01t)
View or Post an Explanation 307 (0)JAMB 2000
3

A certain radioactive source emits radiations that were found to be deflected by both magnetic and electric fields. The radiations are

  • A. beta rays
  • B. gamma rays
  • C. x-rays
  • D. ultrar-violet rays
View or Post an Explanation 282 (0)JAMB 2000
4

The velocity y of a particle in a time t is given by the equation y = 10 + 2t2

Find the instantaneous acceleration after 5 seconds

  • A. 60 ms-2
  • B. 20 ms-2
  • C. 15 ms-2
  • D. 10 ms-2
View or Post an Explanation 300 (0)JAMB 2000
5

A catapult used to hold a stone of mass 500g is extended by 20cm with an applied force F. If the stone leaves with a velocity of 40m/s, the value of F is

  • A. 4.0 x 102N
  • B. 2.0 x 103N
  • C. 4.0 x 103N
  • D. 4.0 x 104N
View or Post an Explanation 123 (0)JAMB 2000
6

A 2H inductor has negligible resistance and is connected to a 50/Ï€ Hz A.C. Supply. The reactance of the inductor is

  • A. 200 Ω
  • B. 50 Ω
  • C. 100/π Ω
  • D. 25/π Ω
View or Post an Explanation 283 (0)JAMB 2000
7

I. Its velocity is constant II. No work is done on the body III. It has constant acceleration directed away from the centre IV. The centripetal force is directed towards the centre

Which combination of the above is true of a body moving with constant speed in a circular track?

  • A. II and IV
  • B. I and IV
  • C. II and III
  • D. I and III
View or Post an Explanation 115 (0)JAMB 2000
8

A conductor of length 2m carries a current of 0.8A while kept in a magnetic field of magnetic flux density 0.5T. The maximum force acting on it is

  • A. 0.2N
  • B. 0.8N
  • C. 3.2N
  • D. 8.0N
View or Post an Explanation 294 (0)JAMB 2000
9

in a pure semiconductor, the number of electrons in the conduction band is

  • A. less than the number of holes in the valence band
  • B. equal to the number of holes in the valence band
  • C. greater than the number of holes in the valence band
  • D. twice the number of holes in the valence band
View or Post an Explanation 267 (0)JAMB 2000
10

A transverse wave is applied to a string whose mass per unit length is 3 x 10-2kgm-1. If the string is under a tension 12N, the speed of the propagation of the wave is

  • A. 5 m/s
  • B. 20 m/s
  • C. 30 m/s
  • D. 40 m/s
View or Post an Explanation 309 (0)JAMB 2000