by Sunday | Nov 12 | Physics JAMB
A. 3 cm B. 4 cm C. 1 cm D. 2 cm Correct Answer: Option C – 1 cm Explanation Y = sin π(150πt – πx/4) comparing the above with the standard wave equation: Y = A sin π ((2vt)/λ – (2x)/λ) => the phase difference x/4 = 2x/λ ∴ 1/4 = 2/λ => λ = 8cm ∴...
by Sunday | Nov 12 | Physics JAMB
A. momentum and power B. velocity and distance C. displacement and torque D. acceleration and speed Correct Answer: Option C – displacement and torque
by Sunday | Nov 12 | Physics JAMB
A. 16cm B. 6cm C. 8cm D. 12cm Correct Answer: Option B – 6cm Explanation For a real image 3 times the size of the object, it implies that the magnification 3 = v/u, 3 = 24/u, therefore 3u = 24, u = 8cm thus we have from the relation:m = (f)/(u)-f; that 3 =...
by Sunday | Nov 12 | Physics JAMB
A. 2.50m B. 0.03m C. 5.00m D. 0.25m Correct Answer: Option D – 0.25m Explanation The power of a lens is defined as the reciprocal of the focal length ,expressed in metre.Mathematically, the power of a lens in dioptres is given by:(100)/f(in cm). thus for lens of...
by Sunday | Nov 12 | Physics JAMB
A. intensity of light striking the object B. rays of light passing through the object C. nature of the object D. opacity of the object Correct Answer: Option B = rays of light passing through the object Explanation The sharpness of the boundary of the shadow of an...
by Sunday | Nov 12 | Physics JAMB
A. oscillation B. resonance C. swinging D. vibration Correct Answer: Option B – resonance Explanation Marching soldiers crossing a suspension bridge are usually advised to break their steps to avoid damaging the bridge owing to resonance. The steps of the...
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