(1)
Water depth decreased
Travelling velocity = Frequency x Wavelength
Travelling velocity decreases & frequency remain unchanged
=> wavelength decreases
(2) , (3)
Relation of energy and amplitude
Intensity = Power / Area = Energy / (Area x Time)
Intensity α (Amplitude)^2
Energy / (Area x Time) α (Amplitude)^2
Energy α (Amplitude)^2
(4) , (5)
Planck's equation for light quanta
Energy = Planck's constant x frequency
=> a light quantum with higher frequency consists of greater amount of energy
*It is totally different from the wave theory which states that energy is proportional to the square of amplitude. Energy of light quanta depends only on frequency.
(6)
Wave
Wave transfers energy without transferring matters
