2015 - WAEC Physics Past Questions and Answers - page 3
In an experiment in which a molten substance is allowed to cool, the cooling curve above was obtained. The temperature 60oC is known as the
Which of the following concepts is a method of heat transfer that does not require a material medium?
Which of the following units is the S.I. unit of heat capacity?
The pressure applied to an enclosed fluid to one end id transmitted equally throughout the fluid and to the container walls. This statement is
The diagram given illustrates a wave form. Determine the speed of the wave
What type of wave is emitted by a loud speaker?
An object is placed 15cm from a diverging lens of focal length 12cm. The image of the object formed by the lens in
A swimming pool is .1m deep. If it contains water of refractive index 1.3, calculate the apparent depth of pool
When an air column is set into vibrations, the distance between two consecutive nodes of the resultant wave is
A girl standing some distance from the cliff claps her hands and hears the echo 0.8s later. calculate her distance from the cliff. [speed of sound in air = 320 ms-1]