Post Utme Physics Past Questions and Answers

Question 1121:

A pin at the bottom of a beaker filled with water appeared to be elevated when viewed from the top of the beaker: Calculate the displacement of the pin from the bottom of the beaker, if the beaker is filled to $8.0cm$ height and the refractive index of water is $4/3$.

A. $6.0cm$
B. $2.0cm$
C. $3.0$ cm
D. $4.0cm$

Question 1122:

A boy stands at a distance, $x$ from a wall. When he shout ed, the echo was hcard 2 seconds later. Calculate the distance from the wall, given that the speed of light is 330 $m/s$.

A. $500m$
B. $340m$
C. $250m$
D. $495m$

Question 1123:

In a ${60}^{\circ }$ prism of refractive index, $1.5$, calculate the angle of minimum deviation when light is refracted through the prism.

A. ${40.2}^{\circ }$
B. ${37.5}^{\circ }$
C. ${37.2}^{\circ }$
D. ${40.5}^{\circ }$

Question 1124:

Calculate the resultant capacitance of the capacitor net work, if each capacitor has a capacitance of $2\mu F$

A. $2.0\mu F$
B. $1.0\mu F$
C. $2.5\mu F$
D. $2.3\mu F$

Question 1125:

A cell of e.m. $4.0V$ is connected in series to two resistors $2\mathrm{\Omega }$ and $4\mathrm{\Omega }$, which are connected in parallel. Calculate the current which flows through the $4\mathrm{\Omega }$ resistor.

A. $1.0A$
B. 2.0A
C. 3.0A
D. 4.0A