Question

What is the longitudinal extent of India?
A. $50^\circ {\text{E}}$ - $77^\circ {\text{E}}$
B. $55^\circ {\text{E}}$- $70^\circ {\text{E}}$
C. $68^\circ {\text{E}}$- $97^\circ {\text{E}}$
D. $90^\circ {\text{E}}$- $120^\circ {\text{E}}$

Answer 1

Hint: It is a geographic organization that indicates the east-west situation of a point on the Earth's surface or the outside of a heavenly body. It is an angular measurement, typically communicated in degrees and indicated by the Greek letter lambda (λ). Meridians associate focuses on a similar longitude.

Complete answer:
 As indicated by latitudes, India is in the Northern Hemisphere. It stretches out between $8^\circ 4'{\text{N}}$ to $37^\circ 6'{\text{N}}$. Its southern degree is $8^\circ 4'{\text{N}}$ and northern is $37^\circ 6'{\text{N}}$. As per longitudes, India is in Eastern Hemisphere. It stretches out between $68^\circ 7'{\text{E}}$ to $97^\circ 25'{\text{E}}$.
The prime meridian, which passes close to the Royal Observatory, Greenwich, England, is characterized as $0^\circ $ longitude by the show. On account of the world's turn, there is a nearby association between longitude and time. Nearby an ideal opportunity (for instance from the situation of the sun) fluctuates with longitude, a distinction of $15^\circ $ longitude relating to a one-hour contrast in neighborhood time. Contrasting neighborhood time with a flat out proportion of time permits longitude to be resolved. Contingent upon the period, the total time may be gotten from a divine occasion obvious from the two areas, for example, a lunar overshadowing, or from a period signal sent by transmitting or remote.
An area's north-south situation along a meridian is given by its latitude, which is roughly the point between the nearby vertical and the central plane. Longitude is for the most part given utilizing the mathematical or cosmic vertical. This can contrast marginally from the gravitational vertical in light of little varieties in Earth's gravitational field.

Thus, option (C) is correct.

Note: The idea of longitude was first evolved by old Greek stargazers. Hipparchus (second century BCE) utilized a facilitated framework that expected circular earth and partitioned it into $360^\circ $ as we do today. His prime meridian went through Alexandria.