Which statement is true about a polarized object?
2 answers:
Answer: Option (3) is the correct answer.
Explanation:
When an object is polarized then it means that if a negatively charged object is brought near a neutral atom then a positive charge will develop on the neutral object near the area of contact.
Whereas a negative charge will develop on the opposite side neutral object which is not in contact with the negatively charged object.
Hence, in a polarized object there are equal number of both positive and negative charges.
Thus, we can conclude that the statement number of positive and negative charges can be the same, is true about a polarized object.
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Explanation:
The frequency of radio waves is 1.667 GHz
One portion of the same wave front travels 1.260 mm farther than the other before the two signals are combined.
There are two conditions for interference either constructive or destructive.
For constructive interference , the path difference is n times of wavelength and for destructive interference, the path difference is (n+1/2) times of wavelength
We can find wavelength in this case as follows :
If we divide path difference by wavelength,
It means that the path difference is 7 times of the wavelength. it means the two waves combine constructively and the value of m for the path difference between the two signals is 7.