Correct Statements on Latitude and Longitude
This question asks to identify the correct statements regarding the geographical concepts of latitude and longitude.
Statement 1: Latitude and Longitude Ranges
Latitude measures the angular distance, North or South, from the Earth's Equator. Its value ranges from 0° at the Equator to a maximum of 90° North at the North Pole and 90° South at the South Pole.
Longitude measures the angular distance, East or West, from the Prime Meridian (0° longitude, passing through Greenwich, London). Its value ranges from 0° to a maximum of 180° East or 180° West.
This statement accurately describes the correct ranges and directions for both latitude and longitude.
Statement 3: Definition of Longitude
The definition provided states that the longitude of a point is the angle formed between the Prime Meridian and the meridian that passes through that specific point. This is the fundamental definition of longitude.
This statement correctly defines longitude.
Incorrect Statements Analysis
Statement 2 Analysis
Statement 2 incorrectly swaps the ranges and directional references for latitude and longitude. Latitude ranges are based on North/South degrees (0° to 90°), while longitude ranges are based on East/West degrees (0° to 180°) relative to the Prime Meridian.
Statement 4 Analysis
Latitude and longitude are fixed angular measurements for a specific location on the Earth's surface. They do not change over time for a stationary point.
Conclusion
Based on the analysis, statements 1 and 3 are factually correct descriptions of latitude and longitude.
Important Questions from Theodolite
- Which of the following errors is/are eliminated by taking both left and right face observations in a theodolite?
- When conducting a survey using a total station, a zenith angle is measured as $84°13′56″$ in the direct mode. What is the equivalent zenith angle in the reverse mode?
- "Transit the telescope" of a theodolite involves
- Face Left and Face Right observations using a vernier theodolite will eliminate
- An angle of $90^\circ$ is to be laid out with a theodolite having a least count of $30''$. The angle was measured by repetition method and was found to be $90^\circ 00' 25''$. The offset value at a distance of 300 m from the theodolite to set-out the correct angle is _______ m. (Rounded off to 3 decimal places).
