Choose the correct statement(s) from the following.

Options

A. In a glow-worm the energy produced during a chemical reaction in its body is released in the form of light only.
B. An electric bulb glows, when the filament attains very high temperature due to the passage of current.
C. Due to the powerful reactions taking place in the sun, the energy produced by the sun consists of light and heat.
D. All of the above

Explanation

To solve the question of choosing the correct statements regarding light, we will analyze each statement one by one:

### Step 1: Analyze the first statement
**Statement 1:** "In a glow worm, the energy produced during a chemical reaction in its body is released in the form of light only."

**Explanation:** Glow worms, also known as fireflies, produce light through a chemical reaction in their bodies. This phenomenon is called bioluminescence. The energy released during this reaction is indeed emitted as light, and it is correct to say that it is released in the form of light only.

**Conclusion:** This statement is correct.

### Step 2: Analyze the second statement
**Statement 2:** "An electric bulb glows when the filament attains very high temperature due to passage of current."

**Explanation:** When an electric current passes through the filament of a bulb, it heats up due to the resistance it encounters. As the temperature of the filament increases, it eventually becomes hot enough to emit visible light. This is the principle behind how incandescent bulbs work.

**Conclusion:** This statement is also correct.

### Step 3: Analyze the third statement
**Statement 3:** "Due to powerful reactions taking place in the sun, energy produced by the sun consists of heat and light."

**Explanation:** The sun generates energy through nuclear fusion reactions, which occur in its core. These reactions produce a tremendous amount of energy, which is emitted as both heat and light. This is why we receive sunlight and warmth from the sun.

**Conclusion:** This statement is correct as well.

### Step 4: Final Conclusion
After analyzing all three statements, we find that all of them are correct. Therefore, the correct answer to the question is:

**Answer:** All of the above statements are correct.

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