Question 11

The threshold frequencies of caesium and potassium metals are given in the tablebelow. 11.1 Define the term work function in words. (2) 11.2 Which ONE of the two metals in the table has the higher work function?Give a reason for the answer by referring to the information in the table. (2) The simplified diagrams below … Read more

Question 6

6.1 On 31 January 2020, Tshepo made the first of his monthly deposits of RI 000 into a savings account. He continues to make monthly deposits of RI 000 at the end of each month up until 31 January 2032. The interest rate was fixed at 7,5% p.a., compounded monthly 6.1.1 What will the investment … Read more