Physics - Waves - Properties - Wave equation (v = fλ) - Wave Equation Problems

12 problems. P1: 'f=50 Hz, λ=2m. v=___ m/s' (100). P2: 'v=340 m/s, f=170 Hz. λ=___ m' (2). P3: 'v=3×10⁸ m/s, λ=500nm. f=___ Hz' (6×10¹⁴). P4: 'A water wave: 6 crests pass in 3s, distance between crests=2m. v=___ m/s' (4). P5: 'Radio wave at 100 MHz in air. λ=___ m' (3). P6: 'Sound wave λ=0.5m in air