BANKING Content

RRB ALP 21st Aug 2018 Shift-3 Question 5

Question 5

An echo is returned in 3 s. What is the distance of the reflecting surface from the source,
considering the speed of sound as $$342ms^{-1}$$ ?

Solution

The correct option is A.

       D = $$\frac{vt}{2}$$ = $$\frac{343\times3}{2}$$ = 513m



Create a FREE account and get:

  • Download RRB Study Material PDF
  • 45+ RRB previous papers with solutions PDF
  • 300+ Online RRB Tests for Free

Comments

Register with

OR

Boost your Prep!

Download App