The order of increasing wavelength for blue (b) green ( g) red (r ) and yellow ( y) light is

Options

A. r,y,g,b
B. r,g,y,b
C. g,y,b,r
D. b,g,y,r

Answer

To determine the order of increasing wavelength for blue (b), green (g), red (r), and yellow (y) light, we need to know the approximate wavelengths of each color in nanometers (nm):

1. **Identify the wavelengths**:
- Blue light: approximately 500 nm
- Green light: approximately 550 nm
- Yellow light: approximately 600 nm
- Red light: approximately 700 nm

2. **List the colors with their wavelengths**:
- Blue (b): 500 nm
- Green (g): 550 nm
- Yellow (y): 600 nm
- Red (r): 700 nm

3. **Compare the wavelengths**:
- The shortest wavelength is blue (500 nm).
- Next is green (550 nm).
- Followed by yellow (600 nm).
- The longest wavelength is red (700 nm).

4. **Arrange in increasing order**:
- Based on the wavelengths, we can arrange them in increasing order:
- Blue (b) < Green (g) < Yellow (y) < Red (r)

5. **Final answer**:
- The order of increasing wavelength for blue, green, red, and yellow light is:
- Blue (b), Green (g), Yellow (y), Red (r)