Jamb 2007 Physics Past Questions And Answers
The phenomenon of light bending round an obstacle is?
- A) diffraction
- B) refraction
- C) reflection
- D) polarization
In a large telecommunications auditorium, perforated absorbent materials are used to line the ceiling so as to
- A) Increase the reverberation of sound in the hall
- B) increase the amount of echo in the hall
- C) reduce the hight of the ceiling from the floor
- D) reduce the reverberation of sound in the hall
The instrument used by designers to obtain different color pattern is called?
- A) periscop
- B) sextant
- C) episcope
- D) kaleidoscope
I. Mass
II. Density
III. Temperature
IV. Nature of substance
Which of the above affect diffusion?
- A) I and II only
- B) I,II and IV only
- C) II, III and IV only
- D) I, II, III and IV
Which of the following gas laws is equivalent to the work done?
- A) Boyle' law
- B) Charles law
- C) Pressure law
- D) van der Waal's law
A glass plate 0.9cm thick has a reflective index of 1.50. how long does it take for a pulse of light to pass through the plate? [c = 3.0 x 8 ms-1]
- A) 4.5 x 10-11s
- B) 4.5 x 10-10s
- C) 4 .5 x 10-12 s
- D) 3.0 x 10-10s
A 40KW electric cable was uses to transmit electricity through a resistor of resistance 2.00Ω at 800V. The power loss as internal energy is
- A) 4.0 x 102W
- B) 5.0 x 102W
- C) 4.0 x 103W
- D) 5.0 x 103W
The production of pure spectrum could easily be achieved using a?
- A) glass prism with a pin
- B) triangular prism with two convex lens
- C) traingular prism only
- D) triangular prism with two concave lenses
A charge 50 µc has electric field strength of 360 NC-1 at a certain point. The electric field strength due to another charge 120 µc kept at the same distance apart and in the same medium is?
- A) 864 NC-1
- B) 150 NC-1
- C) 144 NC-1
- D) 18 NC-1
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]
- 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