Definition and determination of linear - Jamb Physics Past Questions and Answers

Question 1:

• JAMB 2019

If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m
B. 69000m
C. 61440m
D. 24000m

Question 2:

• JAMB 1982

A rod of length 10cm is heated through 100^oC and its final length is 10.26cm. What is the co-efficient of linear expansion of the rod?

A. 0.026 per degree centigrade
B. 0.00026 per degree centigrade
C. 0.26 per degree centigrade
D. 1.0026 per degree centigrade
E. 0.0026 per degree centigrade

Question 3:

• JAMB 1983

The linear expansivity of brass is 2 x 10^-5oC^-1. If the volume of a piece of brass is 10cm³ at 0^oC, what will be its volume at 100^oC?

A. 10.02cm³
B. 10.04cm³
C. 10.06cm³
D. 10.20cm³
E. 102.00cm³

Question 4:

• JAMB 1985

A thin aluminum plate has a surface area of 1500m^{[/sup] at 20[sup]o}C. What will be its surface area when it is cooled to -20^oC? (Take the linear expansivity of aluminum to be 2.5 x 10^-5k^-1).

A. 1.503m²
B. 1.500m²
C. 1.498m²
D. 1.497m²
E. 1.490m²

Question 5:

• JAMB 1987

The length of a side of a metallic cube at 20^oC is 5.0cm. Given that the linear expansivity of the metal is 4.0 x 10^-5k^-1, find the volume of the cube at 120^oC .

A. 126.50cm³
B. 126.25cm³
C. 126.00cm³
D. 125.00cm³