Jamb Physics 2019 Past Questions and Answers

Question 56:

• JAMB 2019

Water and Kerosine are drawn respectively into the two limbs of a Hare's apparatus. The destiny of water is 1.0gcm\(^{-3}\) and the density of kerosine is 0.80gcm\(^{-3}\). If the height of the water column is 20.0cm, calculate the height of the kerosine column.

A. 1.6cm
B. 16.0cm
C. 20.0cm
D. 25.0cm

Question 57:

• JAMB 2019

When a girl moves towards a plane mirror at a speed of 4.0m/s, the distance between the girl & her image reduces a speed of

A. 2 m/s
B. 4 m/s
C. 8 m/s
D. 12 m/s

Question 58:

• JAMB 2019

One newton à— One meter equals?

A. One water
B. One Joule
C. One ampere
D. One kilogram

Question 59:

• JAMB 2019

A microscope is focused on a mark on a table, when the mark is covered by a plate of glass 2m thick, the microscope has to be raised 0.67cm for the mark to be once more in focus. Calculate the refractive index.

A. 1.52
B. 1.68
C. 2.58
D. 1.82

Question 60:

• JAMB 2019

Radio waves belongs to the class of ware whose velocity is about

A. 340m/s
B. 3 × 10\(^{6}\) m/s
C. 3 à— 10\(^{8}\) m/s
D. 3 à— 10\(^{-8}\) m/s