Question

WHY DO THE PRIME MERIDIAN OF GREENWICH HAS THE SUN AT THE HIGHEST POINT OF THE SKY?

Answer 1

Dear student,
The prime meridian is that imaginary line which starts from the North Pole and ends at the South Pole. This is 0° meridian passing through Greenwich from which other longitudes are constructed or measured. The Earth rotates from west to east for which the places east of the prime meridian or the Greenwich will be ahead of the Greenwich Time, on the other hand, the places to the west of Greenwich will lag behind it. When the prime meridian of Greenwich faces the sun at noon or mid-day, it is always at the highest point of the sky. It is because the sun’s vertical ray is falling over the prime meridian directly and then it varies according to the varying longitudes.
Regards