CampusFin

White light is directed at a diffraction grating at an angle normal to the grating starting at the normal to the grating(0 degree), the order of red, green and blue light in the diffracted spectrum is:

Review the verified answer and explanation for this Engineering College Admission Test (ECAT) past-paper question on CampusFin.

White light is directed at a diffraction grating at an angle normal to the grating starting at the normal to the grating(0 degree), the order of red, green and blue light in the diffracted spectrum is: Answer: Blue, green, red

Question context

This question is part of 📡 Electronics and Communication Engineering (ECE) within the broader 🛠️ Engineering Essentials subject and appears in the Engineering College Admission Test (ECAT) preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.