<span>principal quantum number (n) </span>represents the relative overall energy of each orbital
Hope this helps!
Answer:
To correct the defects of vision by measuring the radius of curvature and thus the power of the lenses.
Explanation:
A spherometer is an instrument used to measure the curvature of objects such as lenses and curved mirrors.
Generally it consists of a fine screw which is moving in a nut carried on the center of a 3 small legged table or frame. The feet forms the vertices of an equilateral triangle. The lower end of the screw and those of the table legs are finely tapered and terminate in hemispheres.
If the screw has two turns of the thread to the milli meter the head is generally divided into 50 equal parts, so that differences of 0.01 millimeter may be measured without using a vernier scale.
The spherometer is used to measure the radius of curvature of the lenses so that the opthalmologist find the focal length of the lens and then give the power to the lens to correct the defects of vision.
From the formula for Electric Power, P = IV, P = V²/R
So the 100W compared to the 50W.
From P = IV. From the equation there is a direct relationship between P and I. More Power P means more Current, I.
From P = V²/R. From the equation, there is an inverse relationship
between P and R. Therefore more P means less R.
So from these assertions, the answer is:
(1) less resistance and draws more current
Answer:
I = PRT
18 = 150(R)(2)
18 = 300R
R = 0.06
So A is correct.
Let me know if this helps!
