JAMB 2023 A step-down transformer is used on a 2.2 kV line to deliver 110 V. How many turns are on the primary
JAMB 2023 The distance between two successive nodes in a stationary wave is 0.5 m. Calculate the wavelength of
JAMB 2023 A string of length 80 cm is fixed at both ends. If it vibrates in its fundamental mode at a frequenc
JAMB 2023 A tuning fork of frequency 512 Hz produces 4 beats per second with another tuning fork. What are the
JAMB 2023 A sound wave travels 1500 m in 5 seconds in a medium. If the frequency of the wave is 1500 Hz, calcu
JAMB 2023 A progressive wave is represented by y = 10 sin(200πt – 0.4πx) where x and y are in metres and t in
JAMB 2023 If a man stands symmetrically in front of the two mirrors which are placed side by side at an angle
JAMB 2023 An object is placed 20 cm away from a pin-hole camera. If the length of the camera is 10 cm and the
JAMB 2023 A car changes its position (x) as a function of time (t) as follows: x = 4t² – 12, with x in metres.
JAMB 2023 A solid of density 1.25 x 10⁴ kgm⁻³ weighs 25 N in air. It is completely immersed in water of densit
JAMB 2023 A beam of light travelling in water is incident on a glass which is immersed in the water. The incid
JAMB 2023 Which of the following is/are not true about the heat capacity of a substance? (i) It is an intensiv