The Yerkes refracting telescope has a 1.00 m diameter objective lens of focal length 20.0 m. Assume it is used with an eyepiece
1 answer:
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Answer:(b)
Explanation:
Given
Electric current flowing through the horizontal wire towards the observer's face.
The direction of the magnetic field is given by the right-hand thumb rule, i.e. place the thumb in the direction of current and the wrapping of fingers will give the direction of the magnetic field
the direction of the magnetic field will be counterclockwise as observed by an observer.
Hope this helps you.
Answer:
5.37 N/C
Explanation:
Peak value of magnetic field, Bo = 17.9 nT = 17.9 x 10^-9 T
The electromagnetic wave is produced when an oscillating electric and magnetic field interacts each other perpendicularly.
The direction of propagation of electromagnetic wave is perpendicular to both electric and magnetic field.
the relation between the electric field and magnetic field amplitudes is given by
where, c be the velocity of light, Eo be the peak value of electric field strength, Bo is the peak value of magnetic field strength.
Eo = 5.37 N/C