Question
The frequency (f), wavelength ( ) and speed (v) of a sound wave are related as
NDA
General Ability
General Science
2025
NDA 2025 (Phase 1)
NDA General Ability Question (2025) — Solution
Options
- A. f = v
- B. = vf
- C. f = v
- D. v = f
Answer
D. v = f
Step-by-step solution
The distance travelled by a wave in one time period T is its wavelength . The speed of the wave is given by v = Distance Time = T . Since frequency f = 1 T , substituting this into the equation gives v = f. Answer: v = f
Related: General Ability — General Science · All PYQ Banks