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2 answers:
Answer: 1. Radio waves have longer wavelengths and lower frequencies than microwaves.
2. Infrared light has a lower frequency and longer wavelength than ultraviolet light.
Explanation:
Electromagnetic waves are waves which can travel through the vacuum. electromagnetic waves have electrical and magnetic component associated with them. They all travel with the speed of light.
Radio waves, micro waves, infra red and ultraviolet are all electromagnetic waves.
The relationship between wavelength and frequency of the wave follows the equation:
where,
= frequency of the wave
c = speed of light
= wavelength of the wave
From the above relation, it is visible that wavelength and frequency follow inverse relation. For increase in wavelength, the value of frequency decreases and vice-versa.
Thus, for higher wavelength, the electromagnetic wave will also have lower frequency.
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Answer:
m = 0.01 kg
Explanation:
Given that,
Momentum of the marble, p = 0.15 kg-m/s
Speed of the marble, v = 15 m/s
We need to find its mass. We know that,
Momentum, p = mv
Where
m is the mass
So, the mass of the marble is equal to 0.01 kg.