![Trending Articles on Technical and Non Technical topics](/images/trending_categories.jpeg)
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
The speed of light in air is:(a) 3 × 108 cm/s (b) 3 × 108 mm/s (c) 3 × 108 km/s (d) 3 × 108 m/s
(d) 3 × 108 m/s
Explanation
The speed of light in vacuum is commonly denoted by 'c'. It is a universal physical constant, with its exact value 299,792,458 m/s (approximately 3,00,000 km/s or 186,000 mi/s).
Advertisements