Answer:
Before the front of the vehicle enters the intersection.
Explanation:
When stopping at a stop sign where there is no crosswalk or stop line, a driver should stop his/her vehicle before the front of the vehicle enters the intersection.
The front part of the vehicle comes in contact initially. On the other hand, the back part comes after that.
Hence, the correct option is (b).
Angling of the focal track of the anode to create a large actual focal spot and a smaller effective focal spot describes the line focus principle
<h3>
What is the line focus principle?</h3>
The line focus principle states that as the anode angle is reduced, the actual focal spot also becomes small but the heat loading is increased.
It also explains the relationship between the anode surface and the effective focal spot size.
As a result of this, by angling the target, effective area of the target is made much smaller that the actual area of electron interaction.
Hence, angling of the focal track of the anode to create a large actual focal spot and a smaller effective focal spot describes the line focus principle.
Learn more about line focus principle here:
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Answer:
d' = 75.1 cm
Explanation:
It is given that,
The actual depth of a shallow pool is, d = 1 m
We need to find the apparent depth of the water in the pool. Let it is equal to d'.
We know that the refractive index is also defined as the ratio of real depth to the apparent depth. Let the refractive index of water is 1.33. So,

or
d' = 75.1 cm
So, the apparent depth is 75.1 cm.
Answer:
the branch of mechanics concerned with the interaction of electric currents with magnetic fields or with other electric currents.
Explanation: