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Non-mechanical wave can travel...

Non-mechanical wave can travel

A

in vacuum as well as in a medium

B

in vacuum but not in a medium

C

in medium but not in vacuum

D

neither in a medium nor in vacuum

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Wave Types**: Waves can be classified into two main types: mechanical waves and non-mechanical waves. Mechanical waves require a medium (solid, liquid, or gas) to travel, while non-mechanical waves do not. 2. **Mechanical Waves**: Examples of mechanical waves include sound waves, which cannot travel through a vacuum. They need a physical medium to propagate. 3. **Non-Mechanical Waves**: Non-mechanical waves, such as electromagnetic waves, can travel through a vacuum. Examples include visible light, gamma rays, and X-rays. These waves do not require a medium for propagation. 4. **Propagation of Non-Mechanical Waves**: Non-mechanical waves can travel through a vacuum at their maximum speed (e.g., the speed of light is approximately \(3 \times 10^8\) meters per second). They can also travel through a medium, but their speed will be reduced compared to their speed in a vacuum. 5. **Evaluating Options**: The question provides multiple options regarding where non-mechanical waves can travel: - Option 1: In vacuum as well as in medium. - Option 2: In vacuum but not in medium. - Option 3: In medium but not in vacuum. - Option 4: Neither in medium nor in vacuum. 6. **Choosing the Correct Option**: - Option 1 is correct because non-mechanical waves can travel in both vacuum and medium. - Options 2, 3, and 4 are incorrect based on the definitions and properties of non-mechanical waves. 7. **Final Answer**: The correct answer is **Option 1**: Non-mechanical waves can travel in vacuum as well as in medium. ---
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Mechanical waves can be :

Knowledge Check

  • Mechanical waves

    A
    are longitudinal only
    B
    transverse only
    C
    can be both longitudinal and transverse
    D
    none of these
  • Transverse mechanical waves can propagate

    A
    both in a gas and in a metal
    B
    in a gas but not in a metal
    C
    in a metal but not in a gas
    D
    neither in a gas nor in a metal
  • Transverse mechanical waves can propagate

    A
    both in a gas and in a metal.
    B
    in a gas but not in a metal.
    C
    in a metal but not in a gas.
    D
    neither in a gas nor in a metal.
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