1992 - JAMB Physics Past Questions and Answers - page 4
If a plastic sphere floats in water (density = 1000kgm3) with 0.5 of its volume submerged, and floats in oil with 0.4 of its volume submerged the density of the oil is
A platinum resistance thermometer wire has a resistance of 5 ohms at 0oC and 5.5 ohms at 100oC. Calculate the temperature of the wire when the resistance is 5.2 ohms
A bridge made of steel is 600m long. What is the daily variation in its length if the night-time and daytime temperatures are 10oC and 35oC respectively. The linear expansivity of steel is 0.000012C-1
One of the most important applications of bi-metallic strip is found in the construction of
At constant pressure, the density of a fixed mass of gas is
How much heat is absorbed when a block of copper of mass 0.05kg and specific heat capacity 390Jkg-1K-1 is heated from 20oC to 70oC?
A block of ice floats on water inside a container. If the block of ice gets completely melted, the level of water in the container will
The space between the double glass walls of a thermos flask is evacuated space are silvered. The residual source of heat loss takes place by
The equation of a wave is y = 0.005 sin[x(0.5X - 200t)] where x and y are in meters and t is in seconds. What is the velocity of the wave?
Which of the following characteristics of a wave is used in the measurement of the depth of the sea?