One likes to sit under sunshine in winter seasons, because

Options

A. we get heat by radiation from Sun
B. we get heat by conduction by Sun
C. we get heat by conduction from Sun.
D. we get heat by conduction from Sun.

Explanation

To solve the question of why one likes to sit under sunshine in winter seasons, we can break it down into several steps:

### Step 1: Understanding Heat Transfer Mechanisms
In physics, heat can be transferred through three main mechanisms: conduction, convection, and radiation.

### Step 2: Identifying the Relevant Mechanism
During winter, the air temperature is typically low, and people seek warmth. The primary way we receive warmth from the sun is through radiation. Unlike conduction and convection, which require a medium (like air or water) to transfer heat, radiation can occur through a vacuum.

### Step 3: The Role of the Sun
The sun emits energy in the form of electromagnetic radiation, which includes visible light, ultraviolet (UV) rays, and infrared (IR) rays. This energy travels through the vacuum of space and reaches the Earth.

### Step 4: Absorption of Solar Radiation
When this solar radiation reaches the Earth's surface, it is absorbed, which increases the temperature of the surface. This is why sitting in the sun feels warm, even in cold weather.

### Step 5: Conclusion
Therefore, one likes to sit under sunshine in winter because they receive heat from the sun through the process of radiation, which warms them up despite the cold air temperature.

### Final Answer
One likes to sit under sunshine in winter seasons because we get heat by radiation from the sun.

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