Last Updated:
What is the speed of light in vacuum? Students should therefore read every qualifier, including words such as “always,” “at infinity,” “in vacuum,” “per unit,” and “directly proportional.” Such words often decide the correct option.
The correct answer is 3×10^8 m/s.
FAQ
Common questions and clear answers for this topic.
Physics typically makes up a small portion of the General Science questions, usually focused on concepts rather than numerical problems.
Basic mechanics, heat, sound and light, and electricity and magnetism are the areas that come up most consistently across previous papers.
Rarely. Most questions are conceptual and test everyday understanding rather than calculation skills.
NCERT textbooks from classes 9 and 10 build a strong enough conceptual base for most of what SSC CGL asks.
Connecting concepts to everyday observations, like why a thermos keeps tea warm, makes them far easier to recall than memorizing definitions.
