Physics · Wave Motion and Sound
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In wave motion, the least distance between two points that are out of phase of π radians is:
- A
λ
- B
3λ
- C
4λ
- D
λ/2
In wave motion, the least distance between two points that are out of phase by π radians (180 degrees) is referred to as half of the wavelength (λ/2).
The formula for phase difference (Δφ) in terms of wavelength (λ) is:
Δφ = (path difference) / λ
For two points that are out of phase by π radians:
Δφ = π radians
So, to find the path difference:
π = (path difference) / λ
Rearranging the formula to find the path difference:
path difference = π * λ
Since we are looking for the least distance, this occurs when the path difference is equal to half of the wavelength:
path difference = λ/2
This option is incorrect as per the formula.
In wave motion, the least distance between two points that are out of phase by π radians (180 degrees) is referred to as half of the wavelength (λ/2).
The formula for phase difference (Δφ) in terms of wavelength (λ) is:
Δφ = (path difference) / λ
For two points that are out of phase by π radians:
Δφ = π radians
So, to find the path difference:
π = (path difference) / λ
Rearranging the formula to find the path difference:
path difference = π * λ
Since we are looking for the least distance, this occurs when the path difference is equal to half of the wavelength:
path difference = λ/2
This option is incorrect as per the formula.
In wave motion, the least distance between two points that are out of phase by π radians (180 degrees) is referred to as half of the wavelength (λ/2).
The formula for phase difference (Δφ) in terms of wavelength (λ) is:
Δφ = (path difference) / λ
For two points that are out of phase by π radians:
Δφ = π radians
So, to find the path difference:
π = (path difference) / λ
Rearranging the formula to find the path difference:
path difference = π * λ
Since we are looking for the least distance, this occurs when the path difference is equal to half of the wavelength:
path difference = λ/2
This option is incorrect as per the formula.
In wave motion, the least distance between two points that are out of phase by π radians (180 degrees) is referred to as half of the wavelength (λ/2).
The formula for phase difference (Δφ) in terms of wavelength (λ) is:
Δφ = (path difference) / λ
For two points that are out of phase by π radians:
Δφ = π radians
So, to find the path difference:
π = (path difference) / λ
Rearranging the formula to find the path difference:
path difference = π * λ
Since we are looking for the least distance, this occurs when the path difference is equal to half of the wavelength:
path difference = λ/2
This option is correct.
In wave motion, the least distance between two points that are out of phase by π radians (180 degrees) is referred to as half of the wavelength (λ/2).
The formula for phase difference (Δφ) in terms of wavelength (λ) is:
Δφ = (path difference) / λ
For two points that are out of phase by π radians:
Δφ = π radians
So, to find the path difference:
π = (path difference) / λ
Rearranging the formula to find the path difference:
path difference = π * λ
Since we are looking for the least distance, this occurs when the path difference is equal to half of the wavelength:
path difference = λ/2
Tagged under Physics · Wave Motion and Sound · 2021