The speed of electrons striking the anode is increased, the density of the emitted x-rays increases.
Answer: Option 2
<u>Explanation:</u>
Whenever electrons are made to be incident on any anode, they will be interacting with the surface atoms of anode. So these interaction will lead to excitation of electrons of the surface atoms of the anode.
Thus when the excited electron will come back to ground state, it will emit x-rays. Thus, on increasing the speed of the striking electrons, it will gain the property of interacting with larger amount of surface atoms leading to increase in the emission of X-rays .
Thus, this increase in the emission of X-rays will lead to increase in the density of X-ray. So the speed of electrons striking the anode is increased, the density of the emitted x-rays increases.
Answer:
C. 900J (i tried my best)
Explanation:
the student's mass=60kg
gravitational field strength= 10N/kg:
1kg = 10N
60kg = 600N
(where 600N is the gravitational field strength of the student)
√1.5²+2² (pythagoras theorem)
=2.5m (the stairs' length)
work done= N x distance move in the direction of force (m)
=600N x 2.5m
=1500J @ Nm
1500J - 600N (gravitational field strength of the student)
=900J(??)
-correct me if i'm wrong i'm just a human :)
Energy is force * distance.
So force is energy/distance so 6000J/300m = 20N
Answer:
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