If you fail, never give up because FAIL means 'First Attempt In Learning'.— A. P. J. Abdul Kalam

Problem Solving — quick quiz

5 real SOF NSO questions on Problem Solving. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 5

MEDIUM

A sound wave travels through air at 340 m/s and reflects from a wall 170 m away. If a person standing at the source hears the echo after a certain time, and during this time a light signal would have traveled 102000 m, what is the speed of light used in this comparison?