JAMB 2024 Ultraviolet light with a wavelength of 280 nm is used in an experiment on the photoelectric effect with a lithium cathode (work function, W_o = 2.5…
JAMB 2024 A particle having initial velocity 5 ms⁻¹ moves with a constant acceleration of 2 ms⁻² for 10 s. Find the displacement of the particle in the last 1…
JAMB 2024 The angle of refraction (r) of a ray of white light from air through a triangular glass prism of refractive index 1.5 is 29.0°. Calculate the angle…
JAMB 2024 The instantaneous current in a circuit is given by i = 4sin(ωt + π/4). The RMS value of the current is
JAMB 2024 Which of the following media allow the transmission of sound waves through them? I. Air II. Liquids III. Solids
JAMB 2024 An electron with kinetic energy 1.50 keV circles in a place perpendicular to a uniform magnetic field. The orbit radius is 30.0 cm. Find the speed of…
JAMB 2024 A resistor develops 400 J of thermal energy in 10 s when a current of 2 A is passed through it. Find its resistance.
JAMB 2024 A steel strip, clamped at one end, vibrates with a frequency of 20 Hz and an amplitude of 5 mm at the free end, where a small mass of 2 g is…
JAMB 2024 Experiment shows that the frictional drag force F of a car moving in the air depends on the velocity v of its motion, density ρ of the air through…