Post Utme Physics Past Questions and Answers

Question 641:

The distance between two suocessive crest or trough is ____________

A. Amplitude
B. Wavelength
C. Frequency
D. Wave distance

Question 642:

An object is placed \(15 cm\) in front of a convex mirror and an image is produced \(5 cm\) behind the mirror, calculate the focal length of the mirror

A. \(-7.5 cm\)
B. \(10 cm\)
C. \(7.5 cm\)
D. \(20 cm\)

Question 643:

A ball is projected horizontally at \(15 m / s\) from a point \(20 m\) above a horizontal surface \(\left(g^{2}=10 m / s ^{2}\right)\). The magnitude of its velocity in \(m / s\) when it hits the surface is ____________

A. 10
B. 15
C. 20
D. 25

Question 644:

A malaria patient has a body temperature of \(39.5^{\circ} C\). Convert this temperature to \(F _{\text {. }}\)

A. 83.2 \(F\)
B. \(103.1^{\circ} F\)
C. \(77,4^{\circ} F\)
D. 147 .

Question 645:

Positive charges usually move from ____________

A. Higher to lower potential areas
B. Lower to higher potential areas
C. North to south
D. Higher resistance to lower resistance areas