- #1

TomK

- 69

- 14

- Homework Statement
- Question: For a conventional clock, how many times does the minute hand make a right angle with the hour hand in one day (between midnight on two consecutive days)?

- Relevant Equations
- Circle formulae.

I understand this working all the way up until the '2n-1' part, where n is a positive integer.

I understand that delta theta is 90 degrees (i.e. pi/2 radians), as the hands are at right angles to each other.. I also understand where the angle equations are derived from and why you have to find the difference between them. I just don't know why '2n-1' was chosen as the multiplier for pi/2. Would someone be able to explain this?