Question

The length of a wire is l1 when tension is 4Fand l2 when the tension is 5F. Then its length when the tension is 9F would be 1) 9l1 – 8l22) 5l1 – 4l2 3) 5l2 – 4l14) 9l2 – 8l

Answer 1

Answer:

Select the correct alternative(s) :

a) the amplitude of component waves is 2 mm

b) the amplitude of component waves is 4mm

c) the smallest possible length of string is 0.5 m

d) the smallest possible length of string is 1.0 m

1) a, care correct 2) b, c are correct

3) a, d are correct