Question:
According to corpuscular theory of light, Which is NOT the property of light?
According to corpuscular theory of light, Which is NOT the property of light?
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The corpuscular theory says light is faster in a denser medium, so claiming it is faster in air is not its prediction.
Updated On: Oct 1, 2026
- The velocity of light does not change after reflection
- Light travels in a straight line
- The velocity of light in air is greater than in glass
- The velocity of light changes after refraction
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Newton corpuscular theory treated light as tiny particles. To explain refraction towards the normal, it assumed that light speeds up on entering a denser medium.
Step 2: Check statement (A).
The speed stays the same after reflection in a given medium. This agrees with the theory.
Step 3: Check statement (B).
Particles travel in straight lines, so light does too. This agrees with the theory.
Step 4: Check statement (C).
The theory predicts a greater speed in glass than in air. Statement (C) says the opposite, so it is NOT a property according to this theory. Experiments (Foucault) later showed that light is slower in glass, which supported the wave theory.
Step 5: Check statement (D).
The speed changes after refraction, because the medium changes. This agrees with the theory.
Final Answer:
Statement (C) is not a property under the corpuscular theory, option (C). \[ \boxed{\text{(C)}} \]
Newton corpuscular theory treated light as tiny particles. To explain refraction towards the normal, it assumed that light speeds up on entering a denser medium.
Step 2: Check statement (A).
The speed stays the same after reflection in a given medium. This agrees with the theory.
Step 3: Check statement (B).
Particles travel in straight lines, so light does too. This agrees with the theory.
Step 4: Check statement (C).
The theory predicts a greater speed in glass than in air. Statement (C) says the opposite, so it is NOT a property according to this theory. Experiments (Foucault) later showed that light is slower in glass, which supported the wave theory.
Step 5: Check statement (D).
The speed changes after refraction, because the medium changes. This agrees with the theory.
Final Answer:
Statement (C) is not a property under the corpuscular theory, option (C). \[ \boxed{\text{(C)}} \]
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