Three Separate Strings Are Made of the Same Material $\tau$

question 12

Multiple Choice

Three separate strings are made of the same material. String 1 has length L and tension $\tau$ , string 2 has length 2L and tension 2 $\tau$ and string 3 has length 3L and tension 3 $\tau$ . A pulse is started at one end of each string. If the pulses start at the same time, the order in which they reach the other end is:

• A) 1, 2, 3
• B) 3, 2, 1
• C) 2, 3, 1
• D) 3, 1, 2
• E) they all take the same time

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Definitions:

1H NMR Signal

A peak or signal observed in hydrogen-1 nuclear magnetic resonance spectroscopy that provides information about the local environment of hydrogen atoms in a compound.

Carboxyl Group's Hydrogen

The hydrogen atom attached to the oxygen in the carboxyl functional group -COOH, known for its acidity.

Propanoic Acid

An organic carboxylic acid with the chemical formula C3H6O2, known for its foul odor and use in food preservatives.

Organic Halide

Organic compounds containing one or more halogen atoms (fluorine, chlorine, bromine, or iodine) attached to carbon atoms, widely used in organic synthesis and industrial applications.