Post Utme Physics Past Questions and Answers

Question 1081:

Calculate the effective resistance between terminals \(A\) and \(B\) in the circuit section shown in Fig. \(2 .\)

A. \(3.0 \Omega\)
B. \(21.0 \Omega\)
C. \(2 . \Omega\)
D. \(4.3 \Omega\)

Question 1082:

Calculate the equivalent capacitance between terminals \(A\) and \(B\) in the circuit section shown in Fig. 3

A. \(1.0 \mu F\)
B. \(4.3 \mu F\)
C. \(6.0 \mu F\)
D. \(9.0 \mu F\)

Question 1083:

A broadcasting station transmits at a frequency of 89.5 MHz. What capacitance together with an inductance of \(30 \mu H\) is needed to tune to this station?

A. \(4.16 nF \)
B. \(2.68 KF\)
C. \(4.16 pF\)
D. \(2.98 \mu F\)

Question 1084:

When \({ }_{92}^{238} U\) decays by emitting an alpha particle, the daughter nuclide is ____________

A. \({ }_{90}^{234} Th\)
B. \({ }_{92}^{234} U\)
C. \({ }_{93}^{238} NP\)
D. \({ }_{91}^{238} Pa\)

Question 1085:

A train starting from rest accelerates at the rate of \(6 m / s ^{2}\) for 20 seconds to attain a constant speed, and it further travelled for another 20 seconds and decelerates at rate of \(3 m / s ^{2}\) for 20 seconds.
Calculate the total distance (in kilometre) traveled by the train.

A. \(4.0 km\)
B. \(4.4 km\)
C. \(4.8 km\)
D. \(3.6 km\)