Question

An Unidentified Flying Object (UFO) lands on
a planet at a point 5 kilometres from an active
volcano. There is a volcanic explosion. The
time interval between the flash of light from
the volcanic explosion and the sound of
eruption was registered as 100 s. The time
period of wave is 2 s.
Frequency of the wave is
A
0.001 Hz
B
0.01 Hz
С C
0.5 Hz
D
1.0 Hz​

Answer 1

Answer:

0.0001 556665839042789