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PASSAGE-III: An Unidentified Flying Obje...

PASSAGE-III: 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.
The wavelength of the wave is

A

100 m

B

200 m

C

300 m

D

400 m

Text Solution

Verified by Experts

The correct Answer is:
A
We have,
Velocity `=("Wavelength")/("Time period")`
`therefore` Wavelength `=` Velocity `xx` Time period
`=50"m s"^(-1) xx 2s = 100" m"`
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