Question 1
The figure below (fig 1) shows two plane mirrors inclined at an angle x from each other. A viewer counts a total of seven images from looking directly from the object O. Determine value of x
Answer
Question 2
The figure 2 below shows two identical electroscopes. The one on the right is charged but the one on the left is not.
Show the charge distribution after the caps of the two electroscopes are connected by a thin conducting wire
Answer
Question 3
A student connected the circuit as in fig 3. State what happens when S2 is closed
Answer
B1 and B2 will light
Question 4
State the use of manganese (IV) oxide in a dry cell
Answer
As a depolarizer
Question 5
A ferromagnetic material is being magnetized by single stroking method. On the axes provided, sketch a graph to show how the strength of the magnet being created varies with the number of strokes
Indicate the direction of the pointer on the galvanometer when the bar magnet is moved as shown.
Answer
