For a curved mirror, all points have the same normal and the angle of incidence is also equal to the angle of reflection.
According to the laws of reflection, the incident ray, reflected ray and normal all lie on the same plane. For a curved mirror, the normal remains the same at all points along the curved mirror.
Again, the angle made between the incident ray and the normal is the same as the angle made between the reflected ray and the normal. Therefore, the angle of reflection is equal to the angle of incidence.
Learn more: brainly.com/question/17638582
1) S.I. Unit for electric current = "Ampere"
2) S.I. Unit for resistance = "Ohm"
3) S.I. Unit for potential difference = "Volt"
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<span>A. An impulse of a force changes the momentum of a body and has the same units and dimensions as momentum.</span>
Answer:
The distance is
Explanation:
From the question we are told that
The initial speed of the electron is
The mass of electron is
Let be the distance between the electron and the proton when the speed of the electron instantaneously equal to twice the initial value
Let be the initial kinetic energy of the electron \
Let be the kinetic energy of the electron at the distance from the proton
Considering that energy is conserved,
The energy at the initial position of the electron = The energy at the final position of the electron
i.e
are the potential energy at the initial position of the electron and at distance d of the electron to the proton
Here
So the equation becomes
Here are the charge on the electron and the proton and their are the same since a charge on an electron is equal to charge on a proton
is electrostatic constant with value
i.e
is the velocity at distance d from the proton = 2
So the equation becomes
Making d the subject of the formula
<span>The scales is 1 m = 10 dm = 100 cm = 1000 mm. Then 10 dm equals 1000 mm and 1 dm equals 100 mm.The names of the measures in that scale are meter, decimeter, centimeter and milimiter. So, the answer is that the length that is 100 times larger than a milimieter is the decimeter (dm). </span>