by Sunday | Jan 9 | Physics WAEC
A. move in a circle B. repel each other C. remain stationary D. attract each other Correct Answer: Option D – attract each other Explanation Two conductors with current flowing in the same direction will...
by Sunday | Jan 9 | Physics WAEC
A. 2.5 cm B. 25.0 cm C. 40.0 cm D. 80.0 cm Correct Answer: Option D = 80.0 cm Explanation The power of a lens is defined as the reciprocal of its focal length in metres: P = 100/f → 2.5 = 100/f where P is the power in diopters and f is the focal length in metres. 2.5...
by Sunday | Jan 9 | Physics WAEC
A. make the deflection of the needle proportional to the current B. increase the sensitivity of the galvanometer C. decrease the magnetic flux produced by the magnet D. make the permanent magnet stronger Correct Answer: Option B = increase the sensitivity of the...
by Sunday | Jan 9 | Physics WAEC
A. doppler effect B. beat C. interference D. resonance Correct Answer: Option B – beat Explanation Beat, in physics, the pulsation caused by the combination of two waves of slightly different frequencies.
by Sunday | Jan 9 | Physics WAEC
A. u = 15cm only B. u = 30cm only C. M < 15cm only D. u > 30cm only Correct Answer: Option D = u > 30cm only Explanation Objects at a distance greater than two times of the focal length produces a real image, inverted and diminished in size. → 2 * 15 = 30cm :...
by Sunday | Jan 9 | Physics WAEC
A. 20N B. 25N C. 40N D. 100N Correct Answer: Option C = 40N Explanation VR = 5:1 or 5 Load = 20kg or 200N MA = 200E Efficiency% = MAVR∗100 100% = 2005E∗100 5E = 200 E = 40
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