Physics · Units and Measurements
An X-unit (xu), historically used for measuring X-ray wavelengths, is approximately equal to which of the following values?
- 110 -13 m✓
- 210 -10 m
- 310 -12 m
- 410 -15 m
Correct answer
10 -13 m
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!
Preparing for Physics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Units and Measurements?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Physics · Units and Measurements