Q. Consider the following statements:
1.Iron is a common element on Earth.
2.The opacity of iron inside the sun influences how energy is transported within the sun and other stars.
Which of the statement(s) given above is/are correct?
Answer: C
Notes:
Explanations –
Statements 1 and 2 are correct. Iron is widely found on Earth and is used in various applications like construction, tools, and machinery. It is opaque, meaning it absorbs and scatters light, preventing light from passing through it. Inside the Sun, iron’s opacity plays a crucial role in determining how energy, generated through nuclear fusion in the core, moves outward. The absorption of radiation by iron affects the Sun’s temperature profile and energy transport mechanisms, particularly at the radiation/convection zone boundary.
Source: The Hindu
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