NEET Physics: Questions 1635 - 1640 of 2142
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Question number: 1635
» Oscillations and Waves » Periodic Functions
Assertion (Ꭺ)
In S. H. M. , the motion is ‘to and fro’ and periodic.
Reason (Ꭱ)
Velocity of the particle (where x is the displacement and k is amplitude)
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ |
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| b. | Ꭺ is false but Ꭱ is true |
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| c. | Ꭺ is true but Ꭱ is false |
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| d. | Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ |
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Passage
A student performs an experiment for drawing the static characteristic curve of a triode valve in the laboratory. The following data were obtained from the linear portion of the curves:
| Grid voltage V g (Volt) | -2.0 | -3.5 | -2.0 |
| Plate voltage V p (Volt) | 180 | 180 | 120 |
| Plate current I P (mA) | 15 | 7 | 10 |
Question number: 1636 (1 of 3 Based on Passage) Show Passage
» Electronic Devices » Semiconductor Diode
Question
Calculate the amplification factor μ of the triode valve?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 62 |
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| b. | 54 |
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| c. | 52 |
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| d. | 64 |
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Question number: 1637 (2 of 3 Based on Passage) Show Passage
» Electronic Devices » Semiconductor Diode
Question
Calculate the plate resistance r p of the triode valve?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 0.12 × 10 4 ohm |
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| b. | 1.2 × 10 4 ohm |
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| c. | 1.3 × 10 4 ohm |
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| d. | 1.4 × 10 4 ohm |
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Question number: 1638 (3 of 3 Based on Passage) Show Passage
» Electronic Devices » Semiconductor Diode
Question
Calculate the mutual conductance (g m) of the triode valve?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 5.00 × 10 -3 ohm -1 |
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| b. | 5.33 × 10 -3 ohm -1 |
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| c. | 4.32 × 10 -3 ohm -1 |
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| d. | 53.3 × 10 -3 ohm -1 |
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Question number: 1639
» Oscillations and Waves » Simple Pendulum
Question
If a simple pendulum oscillates with amplitude of 30 mm and time period of 5 sec, then its maximum velocity is
Choices
| Choice (4) | Response | |
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Question number: 1640
» Oscillations and Waves » Periodic Motion - Period Frequency
Assertion (Ꭺ)
The periodic time of a hard spring is less compared to that of a soft spring.
Reason (Ꭱ)
The periodic time depends upon the spring - constant, and spring constant is large for hard spring.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Ꭺ is false but Ꭱ is true |
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| b. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ |
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| c. | Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ |
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| d. | Both Ꭺ and Ꭱ are false |
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