Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

JEE Class main Answered

Please solve the problem
question image
Asked by miaowmira1900 | 10 Sep, 2019, 04:18: AM
answered-by-expert Expert Answer
Amplitude Ar of reflected wave :-   begin mathsize 12px style A subscript r space equals space fraction numerator v subscript 2 space minus space v subscript 1 over denominator v subscript 1 plus v subscript 2 end fraction A subscript i space equals space fraction numerator 10 minus 15 over denominator 10 plus 15 end fraction cross times 5 space equals space minus 1 space m m space end style
where Ai is amplitude of incident wave, v1 is velocity in string-1 (incident wave string ) and v2 is velocity in string-2
 
Amplitude At of transmitted wave :-   begin mathsize 12px style A subscript t space equals space fraction numerator 2 v subscript 2 over denominator v subscript 1 plus v subscript 2 end fraction A subscript i space equals space fraction numerator 2 cross times 10 over denominator 10 plus 15 end fraction cross times 5 space equals space 4 space m m space end style
frequency in both the strings are same.
 
wavelength in string-1 is 1 cm . let wave length in string is x cm
 
then we have,   ( v1 / 1 )  = ( v2 / x )     or  x = ( v2 / v1 ) = 10/15 ≈ 0.67 cm
 
Hence size of transmitted pulse  (h, w) :-  ( 4 mm,  0.67 cm )
 
Hence size of reflected pulse  (h, w) :-  ( -1 mm,  1 cm )
Answered by Thiyagarajan K | 10 Sep, 2019, 02:34: PM

Application Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
JEE main - Physics
doubt
question image
Asked by pkp7734825 | 04 May, 2024, 10:30: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
integration
question image
Asked by sandhyapallapu22 | 03 May, 2024, 04:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
\int_{0}^{4}e^{x/2}dx
Asked by gamingbadboy085 | 01 May, 2024, 06:28: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
time of flight of a verticallly projected stone is 8 sec then position of stone after 6 seconds from ground is
question image
Asked by bhargavreddynellaballi | 30 Apr, 2024, 08:18: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
explain it clearly
question image
Asked by ravichandraravula66 | 29 Apr, 2024, 11:20: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
Alternating Current
question image
Asked by kmani310507 | 28 Apr, 2024, 04:38: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
find current
question image
Asked by arivaryakashyap | 23 Apr, 2024, 10:40: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
Three equal charges, 2⋅0 × 10 − 6 C each, are held fixed at the three corners of an equilateral triangle of side 5 cm. Find the Coulomb force experienced by one of the charges due to the rest two.
question image
Asked by ratnadeep.dmr003 | 21 Apr, 2024, 11:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
Time period for a simple harmonic motion (d ^ 2 * x)/(d * t ^ 2) =- mu xis:
Asked by ksahu8511 | 19 Apr, 2024, 11:55: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
find the acceleration
question image
Asked by mohammedimroz | 13 Apr, 2024, 09:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×