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waec-physics-2020

6 followers

48 questions


The volume of a fixed mass of a gas varies inveresely as the...
The volume of a fixed mass of a gas varies inveresely as the pressure on it, provided the temperature is constant. The statement is A. Pressure law
29 days ago 1 answer(s) 2 votes


The net force on the ball along the plank is
26 days ago 0 answer(s) 3 votes


The normal force on the ball is
26 days ago 1 answer(s) 2 votes


Two identical cups containing the same volume of water at 45...
Two identical cups containing the same volume of water at 45°C and 5°C, are left in a room at 25°C. Which of the following graphs co...
27 days ago 1 answer(s) 2 votes


Which diagram does not represent the correct path of the bea...
27 days ago 1 answer(s) 2 votes


When two cells of negligible internal resistances are equal ...
When two cells of negligible internal resistances are equal e.m.f. denoted by E1 and E2 are connected in parallel, the combined e.m.f. ...
28 days ago 1 answer(s) 5 votes


In photoelectric effect, the number of electrons emitted per...
In photoelectric effect, the number of electrons emitted per second from a metallic surface is proportional to the A. intensity of the incident radia...
28 days ago 1 answer(s) 2 votes


The vacuum between the double walls of a thermos flask reduc...
The vacuum between the double walls of a thermos flask reduces heat loss through A. conduction and radiation B. convection and conduction...
28 days ago 1 answer(s) 2 votes


Which of the following units is not fundamental?
Which of the following units is not fundamental? A. Metre B. Kilogram C. Joule D. Candela
28 days ago 2 answer(s) 3 votes


A luminous object is one that
A luminous object is one that A. gives off dim blue-green light only in the dark B. gives out light of its own C. shines by reflected...
28 days ago 1 answer(s) 2 votes