1. Answer the following two questions: i) Which is true? A photon’s energy is re
ID: 1836993 • Letter: 1
Question
1. Answer the following two questions:
i) Which is true?
A photon’s energy is restricted to a value of hf.
A photon’s energy can be any integer multiple of hf.
A photon with frequency f can have any energy.
ii)Which is true of a beam of light with frequency f?
The beam’s energy is restricted to any integer multiple of hf.
The beam’s energy is restricted to any odd multiple of hf.
The beam’s energy can be any multiple of hf.
The beam’s energy is restricted to any even multiple of hf.
A photon’s energy is restricted to a value of hf.
Explanation / Answer
i.
Photon energy
E=hf
where h=planck's constant =6.626*10-34 J-S
f=frequency of light, which is different for different colors.
A photon’s energy is restricted to a value of hf-true
A photon with frequency f can have any energy-true
ii)
The beam’s energy is restricted to any integer multiple of hf.-true
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