Physics · Wave Optics
A diffraction grating has 1.26 × 104 rulings uniformly spaced over a width w = 25.4 mm. At what angle does the first-order maximum occur when light of wavelength 589 nm is incident normally on it?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 18.49°
- 215.80°
- 316.98°✓
- 433.98°
Correct answer
16.98°
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Physics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Wave Optics MCQs →Want more practice questions on Wave Optics?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Physics · Wave Optics