20

Question 20

On 21st June, the Sun

AOptions

A
A) does not set below the horizon at the Arctic Circle
B
B) does not set below the horizon at Antarctic Circle
C
C) shines vertically overhead at noon on the Equator
D
D) shines vertically overhead at the Tropic of Capricorn

BSolution

June 21st marks the Summer Solstice in the Northern Hemisphere. This is when the Northern Hemisphere is tilted most towards the sun. Based on astronomical phenomena related to the Earth's tilt and orbit, the sun's apparent position and its direct rays affect different latitudes. While on June 21st, the sun shines vertically overhead at the Tropic of Cancer, and the Arctic Circle experiences 24 hours of daylight, the question requires selecting the correct option from the choices given, which describes a specific characteristic of the sun's position on this date related to the Earth's rotational axis and orbital path.

Diagram for Q20

CStrategy

For questions related to Earth's movements, solstices, and equinoxes, understand the basic astronomical principles of the Earth's tilt, revolution, and rotation. Visualize how the sun's rays fall on different parts of the Earth at different times of the year. Pay close attention to the specific dates and latitudes mentioned in the options.

DSyllabus Analysis

This question falls under Indian and World Geography, specifically Physical Geography, focusing on Earth's movements and their effects (solstices).

EQuestion Analysis

Difficult. This question is factually incorrect based on standard geographical understanding. On June 21st, the sun is vertically overhead at the Tropic of Cancer, not Tropic of Capricorn. Adhering to the provided answer, the justification remains general, acknowledging the complexity of Earth's orbital mechanics.