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
An object is placed in front of an equiconvex lens with refractive index 1.5 and radius of curvature 30cm. Surface which...Two cars P and Q start from a point at the same time in a straight line and their positions are represented by Xp(t) = a...In the circuit shown in the figure, the input voltage Vi is 20 V, VBE = 0 and VCE = 0. The values of IB, IC and β a...Two spheres of radii R1 and R2 joined by a fine wire are raised to potential V. Let the surface charge densities at thes...Tube A has both ends open while tube B has one end closed, otherwise they are identical. The ratio of fundamental freque...