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Q. No.The figure shows the snapshot of a travelling sine wave in a string. Four elemental portions a, b, c and d are indicated on the string. The elemental portion with maximum potential energy is/are:
1. a
2. b
3. c
4. b and d
1. a
2. b
3. c
4. b and d
Subtopic: Energy of Waves |
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Given below are two statements:
| Assertion (A): | Sound waves in a gas are pressure waves, but these are also accompanied by changes in local temperature. |
| Reason (R): | This is due to the fact that sound waves are propagated in gas through an adiabatic process, and hence accompanied by temperature variations. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Pressure Wave in Sound |
86%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | Sound would travel faster on a hot summer day than on a cold winter day. |
| Reason (R): | Velocity of sound is directly proportional to the square root of its absolute temperature. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
Subtopic: Speed of Sound |
76%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | Where two vibrating tuning forks having frequencies 256 Hz and 512 Hz are held near each other, beats cannot be heard. |
| Reason (R): | The principle of superposition is valid only if the frequencies of the oscillators are nearly equal. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Beats |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | Beats can also be observed by two light sources as in sound. |
| Reason (R): | Light sources have constant phase difference. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Beats |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | In the case of a stationary wave, a person hears a loud sound at the nodes as compared to the antinodes. |
| Reason (R): | In a stationary wave, all the particles of the medium vibrate in phase. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Standing Waves |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Statement I: | Sound waves travelling from air into water, incident obliquely, bend towards the normal. |
| Statement II: | Sound waves travel more slowly in water than in air. |
| 1. | Statement I is incorrect and statement II is correct. |
| 2. | Both statement I and statement II are correct. |
| 3. | Both statement I and statement II are incorrect. |
| 4. | Statement I is correct and statement II is incorrect. |
Subtopic: Speed of Sound |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | The flash of lightning is seen before the sound of thunder is heard. |
| Reason (R): | Speed of sound is greater than speed of light. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Speed of Sound |
79%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | Our ears distinguish two notes, one produced by a violin and other by guitar, if they have exactly same intensity and same frequency. |
| Reason (R): | When a musical instrument is played, it produces a fundamental note which is accompanied by a number of overtones called harmonics. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Standing Waves |
56%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | In a stationary wave there is no transfer of energy. |
| Reason (R): | The distance between two consecutive nodes or antinodes is \(\begin{aligned}\frac{\lambda}{\sqrt{2}} \end{aligned}\). |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Standing Waves |
65%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
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