What is the speed of light in vacuum?

A300,000 km/h

B1,000,000 km/s

C299,792 km/s

D150,000 km/s

Explanation

The speed of light in a vacuum is exactly 299,792,458 meters per second.

Exam Relevance

Topic: Competitive Exams
Subtopic: FPSC/PPSC Past Papers

Submitted by: mcqstutor Team More General Knowledge MCQs →