Question

A recipe requires 10 grams of salt. According to Weber’s constant for saltiness, which is 1/5, how much more salt must a chef add to make the recipe noticeably saltier?

Answer 1

2 grams of salt must be added by chef to make the recipe noticeably saltier.

Step-by-step explanation:

Weber's Law :

`k=(\Delta I)/(I)`

Where =

I = Initial stimulus intensity

ΔI = Difference threshold

k = Weber constant

According to Weber’s constant for saltiness , k=
`(1)/(5)`

Amount of salt required for the recipe , I= 10 g

`(\Delta I)/(10 g)=(1)/(5)`

`\Delta I = 2 g`

2 grams of salt must be added by chef to make the recipe noticeably saltier.