1998
The diagram below illustrates an a.c.source of 50V(r.m.s.), \(\frac{100}{\pi}\)Hz connected in series with an inductor of inductor of inductance L and a resistor of resistance R. The current in the circuit is 2A and the…
See more
1998 WAEC SSCE Physics Past Questions
Ulearngo is an independent study app. It is not affiliated with, endorsed by, or representing West African Examinations Council (WAEC). Always confirm official exam, admission, registration, syllabus, timetable, and result information from WAEC official website, WAEC Nigeria.
1998
The frictional effect between the layers of a moving fluid is called
See more
1998
A radioactive nuclide of proton number X emits a \(\beta\)-particle to form a new nuclide to proton number Y. The correct equation relating X and Y is
See more
1998
The process of increasing the energy of an atom via inelastic collision with an electron is known as
See more
1998
The diagram above represents a section of a pair of vernier calipers. The reading on the instrument is
See more
1998
It is always not possible to determine exactly and simultaneously the position and momentum of a particle. This statement is known as the
See more
1998
Which of the following explains the concave meniscus of water in a glass tube?
See more
1998
Two radioactive elements A and B have half-lives of 100 and 50 years respectively. Samples of A and B initially contain equal amounts/number of atoms. What is the ratio of the number of the remaining atoms of A to that o…
See more
1998
A body of mass 200g and specific heat capacity 0.4Jg-1k-1 cools from 37oC to 31oC. Calculate the quantity of the heat released by the body.
See more
1998
A body moving in a circle at constant speed has i. a velocity tangent to the circle ii. a constant kinetic energy ii. an acceleration directed towards the circmference of the circle ii. an acceleration directed towar…
See more
1998
A cell of e.m.f. 1.5V is connected in series with a resistor of resistance 3.0\(\Omega\). A voltmeter connected across the cell registers 0.9V. Calculate the internal resistance of the cell
See more
1998
The images formed by a diverging lens are always
See more
1998
A ball of mass 5.0kg hits a smooth vertical wall normally with a speed of 2ms-1 and rebounds with the same speed. Determine the impulse experienced by the ball
See more
1998
A ball is dropped from the top of a tower. Due to air resistance,it reaches terminal velocity. Which of the following statement(s) about its motion is/are correct? i. The acceleration of the ball is zero. ii. The net for…
See more
1998
In the actual exam, an image will be provided that shows a circuit setup for a potentiometer experiment. This setup includes a potentiometer wire PQ, a resistance box to set different values of R, a key K, and a jockey f…
See more
1998
In the actual exam, a setup will be provided that includes tracing the outline of a glass block on paper, marking specific points, and conducting an experiment to study the refraction of light. The experiment involves al…
See more
1998
In the actual exam, a setup will be provided, including a uniform meter rule, a knife edge, a body of mass 50g, and other necessary apparatus. The experiment involves suspending the body from the 1.0 cm mark of the meter…
See more
1998
(a) Explain the term photoelectric effect. (b) The diagram above represents a photocell with its associated electric circuit. Identify each of the physical quantities represented by the letters A, B, C, D, E and F(c) Wha…
See more
1998
(a)(i) Describe, with the aid of a circuit diagram, an experiment to measure the resistance of a wire given an ammeter of low resistance, a battery, a key, a rheostat, va high-resistance voltmeter and some connecting wir…
See more
1998
(a) Distinguish between heat and temperature.(b) State two physical properties of substances which may be used to measure temperature.(c) State two reasons why mercury is preferred to alcohol as a thermometric liquid.(d)…
See more