Home
Class 7
PHYSICS
The speed of light is maximum in...

The speed of light is maximum in

A

glass

B

water

C

vacuum

D

wood

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understand the Question**: The question asks in which medium the speed of light is maximum. We need to analyze the options provided: glass, water, vacuum, and wood. 2. **Recall the Properties of Light**: Light travels at different speeds in different media. The speed of light is fastest in a vacuum, where there are no particles to obstruct its path. 3. **Analyze Each Option**: - **Option A: Glass**: Light travels slower in glass due to the presence of particles that interact with the light. - **Option B: Water**: Similar to glass, water also slows down light because it has particles that can interact with light waves. - **Option C: Vacuum**: In a vacuum, there are no particles, allowing light to travel at its maximum speed, which is approximately \(3 \times 10^8\) meters per second. - **Option D: Wood**: Wood is a solid material and will also slow down the speed of light compared to a vacuum. 4. **Conclusion**: Based on the analysis, the speed of light is maximum in a vacuum. Therefore, the correct answer is **Option C: Vacuum**. 5. **Final Answer**: The speed of light is maximum in a vacuum. ---
Promotional Banner

Topper's Solved these Questions

  • LIGHT ENERGY

    ICSE|Exercise TEST YOURSELF (SHORT/LONG ANSWER TYPE QUESTIONS)|45 Videos

  • LIGHT ENERGY

    ICSE|Exercise QUESTIONS|6 Videos

  • LIGHT ENERGY

    ICSE|Exercise TEST YOURSELF (MATCH THE COLUMN)|1 Videos

  • HEAT

    ICSE|Exercise EXERCISE (PICTURE)|10 Videos

  • MODEL TEST PAPER 1

    ICSE|Exercise SECTION II|43 Videos

Similar Questions

Explore conceptually related problems

The critical angle of light from medium A to medium B is theta . The speed of light in medium A is v. the speed of light in medium B is

The speed of sound is maximum in

The critical angle for light going from medium X into medium Y is theta . The speed of light in medium X is v. The speed of light in medium Y is

Critical angle for light going from medium (i) to (ii) is theta . The speed of light in medium (i) is v then speed in medium (ii) is

The speed of light in vacuum is equal to

The speed of light in air is :

Speed of sound is maximum in

Explain how Corpuscular theory predicts the speed of light in a medium, say, water, to be greater than the speed of light in vacuum. Is the prediction confirmed by experimental determination of the speed of light in water ? If not, which alternative picture of light is consistent with experiment?

Find the speed of light in medium 'a' if speed of light in medium 'b' is c//3 , where c =speed of light in vacuum and light refracts from medium 'a' to medium 'b' making 45^(@) and 60^(@) , respectively, with the normal.

A: The speed of light in water is not same as that in flowing water. R: The speed of light in water is not independent of the relative motion between the observer and the medium.