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(A) : Waves produced by a motor boat sai...

(A) : Waves produced by a motor boat sailing in water are both longitudinal and transverse waves.
(R): The longitudinal and transverse waves cannot be produced simultaneously.

A

Both 'A' and 'R' are true and 'R' is the correct, explanation of 'A'.

B

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'

C

A' is true and 'R' is false

D

Both 'A' and 'R' are false

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the given statements, we will break down the assertion (A) and reason (R) step by step. ### Step 1: Understand the Assertion (A) The assertion states that "Waves produced by a motor boat sailing in water are both longitudinal and transverse waves." - **Transverse Waves**: These waves occur on the surface of the water, where the motion of the water particles is perpendicular to the direction of the wave. In this case, as the motorboat moves, it creates crests and troughs on the water surface, which are characteristic of transverse waves. - **Longitudinal Waves**: These waves occur within the water, where the motion of the water particles is parallel to the direction of the wave. As the motorboat moves, it also creates compressions and rarefactions in the water beneath the surface, which are characteristic of longitudinal waves. ### Conclusion for Step 1: Both types of waves are indeed produced by the motorboat: transverse waves on the surface and longitudinal waves beneath the surface. Therefore, the assertion (A) is **True**. ### Step 2: Understand the Reason (R) The reason states that "The longitudinal and transverse waves cannot be produced simultaneously." - This statement implies that if one type of wave is produced, the other cannot be. However, from our analysis of the assertion, we know that both types of waves can occur at the same time due to the motion of the motorboat. ### Conclusion for Step 2: Since we have observed that both longitudinal and transverse waves are produced simultaneously by the motorboat, the reason (R) is **False**. ### Final Conclusion: - Assertion (A) is **True**. - Reason (R) is **False**. ### Summary: - (A) is True: Waves produced by a motorboat are both longitudinal and transverse. - (R) is False: Longitudinal and transverse waves can be produced simultaneously. ---
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AAKASH SERIES-WAVES-EXERCISE-IB (Assertion (A) & Reason (R) Type Questions)
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  3. (A) : Waves produced by a motor boat sailing in water are both longitu...

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  4. (A): The longitudinal waves are called pressure waves. (R): Propagat...

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  5. (A): Transverse mechanical waves can not propagates in liquids and gas...

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  6. (A): Transverse mechanical waves can not propagates in liquids and gas...

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  7. (A): Solids can support both longitudinal and transverse waves but onl...

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  8. Assertion : The frequencies of incident, reflected and refracted beam ...

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  9. (A): Only longitudinal waves can propagate through a gas. (R): Gase...

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  10. (A): A medium must have elasticity to support wave motion. (R): Rest...

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  11. (A): Both transverse and longitudinal mechanical waves can travel thro...

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  12. Statement-1 : Mechanical transverse waves cannot be generated in gaseo...

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  13. (A): In a progressive wave particle velocity and wave velocity are sam...

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  14. (A): Wave velocity and particle velocity for transverse wave are mutua...

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  15. (A): If in the presence of two independent audio signals, no beats are...

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  16. (A): When a wave goes from one medium to other, average power transmit...

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  17. (A): If two waves of same amplitude, produce a resultant wave of same ...

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  18. Assertion : On reflection from a rigid boundary there takes place a co...

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  19. (A) : The wave length of sound waves increases when they are refracted...

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  20. Statement I:In a progressive logitudinal wave, the amplitude of the wa...

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