The length of the rod will become exactly half of its original value.
The length of the rod remains the same.
The length of the rod will decrease.
The length of the rod will increase.
Wouldn't the length double, thus being answer D?
If your question is:
If a rod is moving at a velocity equal to 1/2 the speed of light parallel to its length, what will a stationary observer observe about its length?
The answer is
L=L₀•sqrt{1-(v/c)²}=0.866L₀
The length of the rod will decrease.
No, the length of the rod will not double. The correct answer is option B: "The length of the rod remains the same."
When it is mentioned that "The length of the rod will become exactly half of its original value," it implies that the length will be reduced by half. However, it does not specify how this reduction will occur.
To accurately determine the final length of the rod, more information about the specific circumstance or action causing the change would be needed. Without that information, we cannot assume the length will double or increase. Therefore, the most reasonable assumption is that the length will remain the same.