None of the above, nothing is there
Answer:
The image is missing, but let's try to answer it.
When we have a plane electromagnetic wave that moves in the K direction, we aways must have that the electric field and the magnetic field are orthogonal.
Where the magnetic field direction can be calculated with the equation:
B = KxE
this is a cross product, to find the direction of B, you can point with your hand in the direction of the first vector, and close your hand in the direction of the second vector, the place at where your thumb is pointing is also the direction of B.
This means that if we have that the wave moves in the X direction, and E is in the Z direction, we will have that B is in the XxZ = Y direction.
The speed of the particle to pass through the Selector is 2875 m/s
<u>Explanation:</u>
Given -
Electric field,(We can represent as E) = 460 N/C
Magnetic field, (We can represent as B) = 0.16 T
Speed,(We can represent as v) = ?
We know that the formula for finding the velocity ,
Therefore, speed of the particle to pass through the Selector is 2875 m/s
A diverging lens is used to permit clear vision of an object placed at infinity. The focal length of the lens is -100 cm.
<h3>What is focal length?</h3>
The focal length is half of the radius of curvature of the focal lens.
By the lens maker formula,
1/f = 1/v +1/u
where, v is the image distance and u is the object distance.
Give, the object is at infinity and the image must form at 100 cm, the the focal length will be
1/f = 1/ -100 + 1/∞
f = -100 cm
The focal length must be -100 cm for the diverging lens.
Learn more about focal length.
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Answer: A) Team should not have to make personal sacrifices for the success of the team.
Explanation:
