AQA A level physics waves exam questions with correct answers

AQA //




A /




level
/ /




physics
/ /




waves exam questions with correct answers
/ // // // // //




Give /
/one /


/reason /


/why //


a/
/cladding /


/material /


/is //used //in //an //optical //fibre //- //correct //answer(s) //✔✔ //To //protect //outer //surface //of //the //core




State //one //use //of //optical //fibres //- //correct //answer(s) //✔✔ //communications /// //endoscopy



State /
/the /


/conditions //necessary //for //a //stationary //wave //to //be //produced //- //correct //answer(s) //✔✔ //-


Superposition //of //progressive //waves

-Incident //waves //and //reflected //waves //travelling //in //opposite //directions

-The //two //waves //have //the //same //frequency



Explain //how //a //stationary //wave //is //produced //- //correct //answer(s) //✔✔ //-
Waves //travel //to //the //boundaries //and //are //reflected

-Two //waves //travelling //in //opposite //directions //superpose