Chapter U5.113, Problem 7E

Interpretation Introduction

(a)

Interpretation:

The color of an orange object needs to be determined if seen from a pair of orange-tinted sunglasses.

Concept introduction:

Primary colors are Red, Yellow and blue. Secondary colors are made by adding two primary colors. Orange is a Secondary colors and it is created by red and yellow color combination. Orange color have wavelength 635-590 nm.

Answer to Problem 7E

The Orange object will appear Orange colour to Human eyes.

Explanation of Solution

Orange Tinted Glass consist of two primary color that are Red and Yellow. When Orange object is seen by the Orange Tinted Glass the color of the Orange object directly reflect all the light. So Reflection of Orange color occur from the object. So, Human eye detect Orange color object as orange color by wearing a Orange Tinted Sunglass.

Interpretation Introduction

(b)

Interpretation:

The color of a blue object needs to be determined if seen from a pair of orange-tinted sunglasses.

Concept introduction:

Blue color is one of the three primary colors. The other two primary colors are red and yellow. Blue color has wavelength 490-450 nm and orange color has wavelength 635-590 nm.

Answer to Problem 7E

Blue color object will appear Black color or no color will be shown.

Explanation of Solution

The orange color tinted sun glasses block the blue light. Blue light with shorter wavelength gets easily scatter than any other color and makes it difficult to see the color of the object. The blue (490-450 nm) will be blocked as its wavelength is less than orange color wavelength (635-590 nm). Therefore, the object will appear black.