Answer: A
Explanation:
Lunar eclipses work the same way in a different order: Moon, Earth and Sun all on a line. In this case the Earth's shadow hides the Moon from view.
Frequency, υ = 2 Hz
Wavelength, λ = 6 m
We know that speed of a wave, v = υ × λ
⇒ v = 2 × 6 = 12 ms⁻¹
Answer:
It captures images but does not preserve them.
