Jamb Physics 2023 Past Questions and Answers

Question 36:

• JAMB 2023

On a particular hot day, the temperature is 40°C and the partial pressure of water vapor in the air is 38.8 mmHg. What is the relative humidity?



A. 70
B. 62
C. 80
D. 42

Question 37:

• JAMB 2023

Calculate the absolute pressure at the bottom of a lake at a depth of 32.8 m. Assume the density of the water is 1 x 10^3 kgm-3 and the air above is at a pressure of 101.3 kPa.

[Take g = 9.8 ms-2]

A. 422.7
B. 220.14
C. 464.53
D. 321.74

Question 38:

• JAMB 2023

The terminals of a battery of emf 24.0 V and internal resistance of 1.0 Ω is connected to an external resistor 5.0 Ω. Find the terminal p.d.

A. 18.0V
B. 12.0V
C. 16.0V
D. 20.0V

Question 39:

• JAMB 2023

A lorry accelerates uniformly in a straight line with acceleration of \(4ms^-2\) and covers a distance of 250 m in a time interval of 10 s. How far will it travel in the next 10 s?

A. 650
B. 900
C. 800
D. 250

Question 40:

• JAMB 2023

The half life of a radioactive material is 12 days. Calculate the decay constant.

A. 0.8663 \(day^{-1}\)
B. 0.04331 \(day^{-1}\)
C. 0.17325 \(day^{-1}\)
D. 0.05775 \(day^{-1}\)