Question 16: Waves

Question

In the diagram shown below, both the strings AB and CD are made of same material and have same cross-section. The pulleys are light and fictionless. If the speed of wave in string AB is v
1
and in CD is v
2
, then $${{{v_1}} \over {{v_2}}}$$ is

Accepted Answer

Let the speed of wave in string be v and tension in string be T.
$$v \propto \sqrt T $$
$${{{v_{AB}}} \over {{v_{CD}}}} = \sqrt {{T \over {2T}}}  = {1 \over {\sqrt 2 }}$$

Answer

1

Answer

$$\sqrt2$$

Answer

2

Answer

1$$\sqrt2$$

Waves

In the diagram shown below, both the strings AB and CD are made of same material and have same cross-section. The pulleys are light and fictionless. If the speed of wave in string AB is v 1 and in CD is v 2 , then ${{{v_1}} \over {{v_2}}}$ is

Choose the correct answer: