Question
Which of the following rays are not electromagnetic waves
|
(a) g-rays |
(b) b-rays |
(c) Heat rays |
(d) X-rays |
✓
Answer
(b) b-rays
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$\text{y}=\text{a}_2\sin(\omega\text{t}+\in)$
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Both the strings, shown in figure are made of same material and have same cross-section. The pulleys are light. The wave speed of a transverse wave in the string AB is $\nu_1$ and in CD it is $\nu_2.$ Then $\frac{\nu_1}{\nu_2}$ is:
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