- A particle of light is a kind of object
- Speed is a property of a wave or an object
- Light is a kind of wave
- Therefore, speed is a property of the light wave and a particle of light

- Light is a kind of wave
- Frequency is a property of a wave / a particle of light / an event
- Hence, frequency is a property of the light wave and a particle of light

- Speed is a property of the light wave and a particle of light
- Frequency is a property of the light wave and a particle of light
- Therefore, speed and frequency can be used to describe the properties of a light wave and a particle of light

So, speed and frequency can be used to describe the properties of a light wave and a particle of light
Question: Which terms can be used to describe the properties of both a wave and a particle of light?
Context: - A particle of light is a kind of object 
- Speed is a property of a wave or an object 
- Light is a kind of wave 
- Frequency is a property of a wave / a particle of light / an event