A string is clamped at both the ends and it is vibrating in its 4th harmonic. The equation of the stationary wave is Y = 0.3 sin (0.157x) cos (200
t). The length of the string is : (All quantities are in SI units)
(a)
60 m
(b)
20 m
(c)
40 m
(d)
80 m
A string is clamped at both the ends and it is vibrating in its 4th harmonic. The equation of the stationary wave is Y = 0.3 sin (0.157x) cos (200 t). The length of the string is : (All quantities are in SI units)
(a)
60 m
(b)
20 m
(c)
40 m
(d)
80 m
Question ID - 51241 | SaraNextGen Top Answer
A string is clamped at both the ends and it is vibrating in its 4th harmonic. The equation of the stationary wave is Y = 0.3 sin (0.157x) cos (200 t). The length of the string is : (All quantities are in SI units)
(a)
60 m
(b)
20 m
(c)
40 m
(d)
80 m
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A string is clamped at both the ends and it is vibrating in its 4th harmonic. The equation of the stationary wave is Y = 0.3 sin (0.157x) cos (200 |
|||
|
(a) |
60 m |
(b) |
20 m |
|
(c) |
40 m |
(d) |
80 m |
1 Answer
127 votes
Answer Key / Explanation : (d) -
= 0.157
= 
= 
In 4th harmonic
∴ 
= 
= 40 m
∴ L = 
= 80m
127 votes
Answer Link
127