Explanation:
It is a branch of astronomy wherein measurements of the positions and movements of celestial bodies are precisely are made.
For the measurement, minute wobbling of the position of the body is detected. When the shift is detected periodically, the astronomers come to know that the star is orbited by a planet.
Also, basic data about the properties of the stars can be collected using this method.
<em>Angle of Dip is the angle in the vertical plane aligned with magnetic north (the magnetic meridian) between the local magnetic field and the horizontal.</em>
Answer:
56.7 nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Answer:
(A) 12.222 ohm (B) 990 W
Explanation:
We have given the voltage of the heating element V = 110 V
The current in the heating element i = 9 A
(a) According to ohm's law V =iR
So 
(b) The power dissipated in the resistor is given by 
So the power dissipated = 990 W
