Basic Maths and Units and DimensionsHard
Question
Two identical straight wires are stretched so as to produce 6 beats/sec when vibrating simultaneously. On changing the tension slightly in one of them the beat frequency remains unchanged. Denoting by T1 and T2 the higher and the lower tensions in the strings then it could be said that while making the above changes in the tension:
Options
A.T2 was decreased
B.T2 was increased
C.T1 was decreased
D.T1 was increased
Solution
T1 > T2So v1 > v2
⇒ f1 > f2 ⇒ f1 - f2 = 6
increase of T1, f1 will increase or f1 - f2 will increase.
decrease of T1, f1 will decrease but now f2 - f1 may be equal to 6.
increase of T1, f2 will increase and now again f2 - f1 may be equal to 6.
⇒ f1 > f2 ⇒ f1 - f2 = 6
increase of T1, f1 will increase or f1 - f2 will increase.
decrease of T1, f1 will decrease but now f2 - f1 may be equal to 6.
increase of T1, f2 will increase and now again f2 - f1 may be equal to 6.
Create a free account to view solution
View Solution FreeTopic: Basic Maths and Units and Dimensions·Practice all Basic Maths and Units and Dimensions questions
More Basic Maths and Units and Dimensions Questions
Match the following(a) Angular momentum (1) M−1 L2 T−2(b) Torque (2) M T−2(c) Gravitational constant (...Speed-time graph of two cars A and B approaching towards each other is shown in figure. Initial distance between them is...Two spherical vessel of equal volume, are connected by a narrow tube. The apparatus contains an ideal gas at one atmosph...A ray of light travelling in water is incident on its surface open to air. The angle of incidence is θ, which is le...A lift is moving down with acceleration a. A man in the lift drops a ball inside the lift. The acceleration of the ball ...