Light and sound frequencies Wave

Frequency (hz)

A note on guitar

440

C note on guitar

256

red laser light

4 x 1014

violet light beam

8 x 1014

Based on the table and your knowledge of waves, what can conclude about the wavelength of mechanical waves compared to electromagnetic waves?

A.
Mechanical waves have greater amplitude

B.
Mechanical waves tend to have longer wavelength.

C.
Mechanical waves tend to have shorter wavelength

D.
Mechanical waves travel faster than electromagnetic waves.

i think   the answer is c hope i'm right

i think slash and

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.