by Sunday | Nov 15 | Physics JAMB
A. undeviated and undisplaced at a lower speed B. deviated and undisplaced at a lower speed C. deviated and displaced at a lower speed D. undeviated and displaced at a faster speed Correct Answer: Option A – undeviated and undisplaced at a lower speed...
by Sunday | Nov 15 | Physics JAMB
A. is opaque B. is a poor conductor C. wets glass D. has low vapour pressure Correct Answer: Option B – is a poor conductor
by Sunday | Nov 15 | Physics JAMB
A. 10 cm B. 30 cm C. 40 cm D. 60 cm Correct Answer: Option B – 30 cm Explanation if r = 40 cm , then f = r/2 = 40/2 = 20 cm then for a real image by a concave mirror, magnification M = f/u-f => 2 = 20/U-20 therefore 2(u-20) = 20 2u – 40 = 20 2u = 40 +...
by Sunday | Nov 15 | Physics JAMB
A. 528 m/s. B. 264 m/s. C. 132 m/s. D. 66 m/s. Correct Answer: Option B – 264 m/s. Explanation in a vibrating string the fundamental frequency is given by fo = v/2L therefore velocity = 2L x f. = 2 x 0.6 x 220 = 264...
by Sunday | Nov 15 | Physics JAMB
A. difference in temperature between the body and its surroundings B. temperature of its surroundings C. ratio of the temperature of the body to that of its surroundings D. temperature of the body Correct Answer: Option A – difference in temperature between the...
by Sunday | Nov 15 | Physics JAMB
A. myopia B. Astigmatism C. Presbyopia D. Chromatic aberration Correct Answer: Option B – Presbyopia