Wave speed (v) is equal to the product of what two components?
a) frequency and wavelength
b) period and frequency
c) frequency and amplitude
d) amplitude and wavelength

Frequency and wavelength

Explanation:

Wave speed is equal to the product of frequency and wavelength. Mathematically, its formula is given by :

f is the frequency of a wave. It is equal to the number of oscillations per unit time.

is the wavelength. It is the distance between crest to crest or trough to trough.

So, the correct option is (a)

ι вєℓιєνє ιт ιѕ тнє fιяѕт ¢нσι¢є(α.)

нє ѕнσυℓ∂ ѕмιℓє ρσℓιтℓу αи∂ ѕρєαк тσ тнє ρєяѕσи ωнσ ιѕ ιитєяяυριиg αfтєя тнє ∂ιѕ¢υѕѕισи

нσρє ι ¢συℓ∂ нєℓρ.

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s