NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 1634 - 1639 of 2142

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Question number: 1634

» Oscillations and Waves » Periodic Functions

MCQ▾

Question

A particle executes a simple harmonic motion of time period T. Find the time taken by the particle to go directly from its mean position to Equation the amplitude

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 1635

» Oscillations and Waves » Periodic Functions

Assertion-Reason▾

Assertion (Ꭺ)

In S. H. M. , the motion is ‘to and fro’ and periodic.

Reason (Ꭱ)

Velocity of the particle Equation (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

b.

Ꭺ is false but Ꭱ is true

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

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:

Data obtained from the linear portion of curve

List of data obtaining from liner portion of curve of static characteristic curve of a triode

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

MCQ▾

Question

Calculate the amplification factor μ of the triode valve?

Choices

Choice (4) Response

a.

62

b.

54

c.

52

d.

64

Question number: 1637 (2 of 3 Based on Passage) Show Passage

» Electronic Devices » Semiconductor Diode

MCQ▾

Question

Calculate the mutual conductance (g m) of the triode valve?

Choices

Choice (4) Response

a.

5.00 × 10 -3 ohm -1

b.

5.33 × 10 -3 ohm -1

c.

4.32 × 10 -3 ohm -1

d.

53.3 × 10 -3 ohm -1

Question number: 1638 (3 of 3 Based on Passage) Show Passage

» Electronic Devices » Semiconductor Diode

MCQ▾

Question

Calculate the plate resistance r p of the triode valve?

Choices

Choice (4) Response

a.

0.12 × 10 4 ohm

b.

1.2 × 10 4 ohm

c.

1.3 × 10 4 ohm

d.

1.4 × 10 4 ohm

Question number: 1639

» Oscillations and Waves » Simple Pendulum

MCQ▾

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

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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