Physics, asked by Meww, 1 year ago

The distance b/w a node and the next antidote in a stationary wave is 5cm. The wavelength of the wave would be:
1. 20cm
2. 1.25cm
3. 5 cm
4. 10cm

Answers

Answered by Poorva15
13
The distance between node and next antinode is equal to λ/4.
so,by the information given in question λ/4=5cm 

so λ=20cm 

see the diagram and notice that the distance between the node and next internode is equal to 1/4th of the wavelength 
Attachments:

Meww: Explain
Meww: The distance between node and next antinode is equal to λ/4.?
Poorva15: when two waves superpose coming from opposite directions with same frequency then nodes are formed where destructive interference occur and antinodes are formed where constructive interference occur.
Poorva15: it can be better understood by a diagram but how do i upload it now?
Meww: Lemme mk a way for u
Meww: I cant understand :(
Poorva15: see the image in that the distance between two nodes is λ/2 because they are forming half of the wavelength
Poorva15: and antinode is present in middle of two nodes so distance between node and antinode will be half of the distance between two nodes
Poorva15: that is how it becomes λ/4
Meww: Thnqq :) U helped me a lot
Answered by niishaa
3

Answer:

The distance between node and next antinode is equal to λ/4.

so,

by the information given in question

 λ/4=5cm 

λ=20cm 

Option 1 is correct

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