Question:
Cold light emission by glow worms is an example of
Cold light emission by glow worms is an example of
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Memory Tip: Light produced by living organisms through chemical reactions is called Bioluminescence, which is a type of Chemiluminescence.
Updated On: Jun 26, 2026
- Chemiluminescence
- Phosphorescence
- Fluorescence
- Quenching
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The Correct Option is A
Solution and Explanation
Concept:
Luminescence is the emission of light without producing high temperature. Different types depend upon the source of excitation.
Step 1:
Glow worms emit light due to a chemical reaction occurring inside their bodies.
Step 2:
When light is produced as a result of a chemical reaction, it is called: \[ \text{Chemiluminescence} \]
Step 3:
• Phosphorescence: delayed emission after absorption of light
• Fluorescence: immediate emission after excitation
• Quenching: reduction of fluorescence intensity Thus these are not suitable for glow worms.
Step 4:
Hence cold light emission by glow worms is: \[ \boxed{\text{Chemiluminescence}} \] \[ \boxed{\text{Correct Option = (1)}} \]
Luminescence is the emission of light without producing high temperature. Different types depend upon the source of excitation.
Step 1:
Glow worms emit light due to a chemical reaction occurring inside their bodies.
Step 2:
When light is produced as a result of a chemical reaction, it is called: \[ \text{Chemiluminescence} \]
Step 3:
• Phosphorescence: delayed emission after absorption of light
• Fluorescence: immediate emission after excitation
• Quenching: reduction of fluorescence intensity Thus these are not suitable for glow worms.
Step 4:
Hence cold light emission by glow worms is: \[ \boxed{\text{Chemiluminescence}} \] \[ \boxed{\text{Correct Option = (1)}} \]
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