Correct Answer - Option 2 : 45°
We use the formula:
Angle: |(11/2) M - 30 H|
Where, M = minutes and H = hours
Here, M = 30 and H = 7 (as 1930 hours = 7:30 pm)
Therefore, we get angle = |(11/2) M - 30 H| = |(11/2) x 30 - 30 x 7| = |165 - 210| = |-45|.
Hence, the correct answer is "45⁰".