Question

In mri scanning the excited hydrogen emits which signal

Answer 1

Answer:

Hydrogen protons within the patient's body will then align to the magnetic field which is typically 30 to 60 thousand times stronger than the magnetic field of the earth. A radio frequency (RF) pulse is then emitted from the scanner, tuned to a specific range of frequencies at which hydrogen protons precess.

Answer 2

Answer:

If the angles of elevation of the top of the candle from two coins distant ‘a’

cm and ‘b’ cm (a>b) from its base and in the same straight line from it are

30˚ and 60˚, then find the height of the candle.