Which of the following pairs of dates… - NCERT Class 11 Geography MCQ

NCERT Class 11 Geography — Chapter 2: Solar radiation, heat balance and temperature

mcqeasy

Which of the following pairs of dates and Earth-Sun positions is correctly matched?

NCERT textbook question

From NCERT Fundamentals of Physical Geography · Page 1

Options

A4th July : Perihelion
B3rd January : Aphelion
C4th July : Aphelion
D21st June : Perihelion

Did you get this right?

Solution

The correct Answer is 4th July : Aphelion

Explanation

The Earth revolves around the Sun in an elliptical orbit. Due to this elliptical path, the distance between the Earth and the Sun varies throughout the year. The two extreme positions in this orbit are perihelion (closest distance) and aphelion (farthest distance).

Statement-wise Analysis

4th July : Perihelion

Incorrect. Perihelion is the point in Earth's orbit when it is closest to the Sun. This typically occurs around January 3rd. July 4th is when the Earth is farthest from the Sun (aphelion).

3rd January : Aphelion

Incorrect. Aphelion is the point in Earth's orbit when it is farthest from the Sun. This typically occurs around July 4th. January 3rd is when the Earth is closest to the Sun (perihelion).

4th July : Aphelion

Correct. Aphelion is the point in Earth's orbit when it is farthest from the Sun. This position is reached around July 4th each year.

21st June : Perihelion

Incorrect. 21st June marks the Summer Solstice in the Northern Hemisphere, but it is not directly related to the perihelion position. Perihelion occurs around January 3rd.

Key Takeaway: Perihelion (closest to the Sun) occurs around January 3rd, and Aphelion (farthest from the Sun) occurs around July 4th.

Your note

More from Chapter 2: Solar radiation, heat balance and temperature

Consider the following statements regarding the insolation received at the Earth's surface: 1. Generally, at the same latitude, insolation is more over the continent than over the oceans. 2. In winter, the middle and higher latitudes receive more radiation than in summer. 3. The subtropical deserts receive more insolation than the equator. Which of the statements given above is/are correct?

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Which of the following is a characteristic of the isotherms in the Southern Hemisphere?

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With reference to the specific heat of land and water, consider the following statements: 1. The variation in temperature over the sea is much greater compared to land. 2. Land heats up and cools down more quickly than the sea. 3. Places near the sea experience extreme temperature variations. Which of the statements given above is/are correct?

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Which of the following is defined as "the energy needed to raise the temperature of one gram of substance by one Celsius"?

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In the context of the heat budget, what percentage of incoming solar radiation is reflected back to space before reaching the earth's surface?

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Keep practising Chapter 2: Solar radiation, heat balance and temperature

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