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MCQs on Oscillator for NEET 2023

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MCQs on Oscillator for NEET

NEET  Physics is the scoring paper in the medical entrance examination. Here, you will discover the NEET Physics MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Physics Oscillator Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

MCQs on Oscillator

1. Which among the following parameters acts as an initiator for the operation of an oscillator in the absence of input signal?
(a) Noise figure
(b) Noise voltage
(c) Noise power
(d) Noise temperature

Answer

Answer: (b) Noise voltage

2. Multivibrators belongs to which of the following category?
(a) Square wave oscillators
(b) Sinusoidal oscillators
(c) Ramp wave oscillators
(d) Triangular wave oscillators

Answer

Answer: (a) Square wave oscillators

3. Which among the below-mentioned oscillators does not adopt any kind of feedback mechanism?
(a) Wein bridge oscillator
(b) UJT relaxation oscillator
(c) Phase-shift oscillator
(d) All of the above

Answer

Answer: (b) UJT relaxation oscillator

4. In an LC oscillator, the frequency of the oscillator is……………… L or C.
(a) Proportional to square of
(b) Directly proportional to
(c) Independent of the values of
(d) Inversely proportional to the square root of

Answer

Answer: (d) Inversely proportional to the square root of

5. An oscillator produces……………. oscillations
(a) Damped
(b) Undamped
(c) Modulated
(d) None of the above

Answer

Answer: (b) Undamped

6.: An oscillator employs ……………… feedback
(a) Positive
(b) Negative
(c) Neither positive nor negative
(d) Data insufficient

Answer

Answer: (a) Positive

7. Which of the following is not an example for the non-sinusoidal oscillator?
(a) Sawtooth Generators
(b) Blocking oscillators
(c) Multivibrator
(d) Crystal oscillators

Answer

Answer: (d) Crystal oscillators

8. The sinusoidal oscillator is also called
(a) LC oscillator
(b) Harmonic oscillator
(c) RC oscillator
(d) Crystal oscillators

Answer

Answer: (b) Harmonic oscillator

9. Which of the following oscillators cannot be used in low-frequency oscillations?
(a) Wein bridge oscillators
(b) RC phase shift oscillators
(c) Colpitts oscillators
(d) RC oscillators

Answer

Answer: (c) Colpitts oscillators

Conservation of Energy and Momentum MCQs for NEET

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Conservation of Energy and Momentum MCQs for NEET

NEET  Physics is the scoring paper in the medical entrance examination. Here, you will discover the NEET Physics MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Physics Conservation of Energy and Momentum Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

MCQ on Conservation of Energy and Momentum

1. Work done in raising a box depends on
(a) How fast it is raised
(b) The strength of the man
(c) The height by which it is raised
(d) None of the above

Answer

Answer: (c) The height by which it is raised

2. A light and a heavy body have equal momenta. Which one has greater kinetic energy?
(a) The light body
(b) The heavy body
(c) The kinetic energy is equal
(d) Data is incomplete

Answer

Answer: (a) The light body

3. A body at rest may have
(a) Energy
(b) Momentum
(c) Speed
(d) Velocity

Answer

Answer: (a) Energy

4. If the momentum of a body is increased n times, its kinetic energy increase
(a) n times
(b) 2n times
(c) n3 times
(d) n2 times

Answer

Answer: (d) n2 times

5. When work is done on a body by an external force, its
(a) kinetic energy increases
(b) potential energy increases
(c) Both kinetic energy and potential energy increases
(d) Sum of the kinetic energy and potential energy remains constant

Answer

Answer: (c) Both kinetic energy and potential energy increases

6. If the K.E of a body is increased by 300% its momentum will increase by
(a) 100%
(b) 150%
(c) 200%
(d) 175%

Answer

Answer: (a) 100 %

7. A light and a heavy body have equal kinetic energy. Which one has a greater momentum?
(a) The light body
(b) The heavy body
(c) Both have equal momentum
(d) It is not possible to say anything without additional information

Answer

Answer: (b) The heavy body

8. If the linear momentum is increased by 50% the kinetic energy will increase by
(a) 50%
(b) 100%
(c) 125%
(d) 25%

Answer

Answer: (c) 125%

9. If the stone is thrown up vertically and return to the ground, its potential energy is maximum
(a) During the upward journey
(b) At the maximum height
(c) During the return journey
(d) At the bottom

Answer

Answer: (b) At the maximum height

10. The energy stored in wound watch spring is
(a) K.E
(b) P.E
(c) Heat Energy
(d) Chemical Energy

Answer

Answer: (b) P.E

Physics Notes for Class 12 PDF Free Download

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The class 12 physics notes by ncertbooks.guru PDF are totally free to download which will help you not in your revision but also help you secure good marks in senior secondary education. Physics is a very diverse and vast subject. The electromagnetism, optics, waves and the thumb rules often confuse a student.

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Equilibrium of Forces MCQs for NEET

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Equilibrium of Forces MCQs for NEET

NEET  Physics is the scoring paper in the medical entrance examination. Here, you will discover the NEET Physics MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Physics Equilibrium of Forces Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

MCQ on Equilibrium of Forces

1. How is the weight of the aeroplane flying in the air balanced?
(a) The weight is balanced because of the force due to the pressure difference between the upper and lower surfaces of the wings created by different airspeeds on the surfaces.
(b) The weight is balanced due to the vertical component of the thrust created by air currents striking the lower surface of the wings
(c) The weight is balanced due to the force produced when the reactions of gases are ejected by the revolving propellor.
(d) Upthrust of the air which will be equal to the weight of the air having the same volume as the plane

Answer

Answer: (a) The weight is balanced because of the force due to the pressure difference between the upper and lower surfaces of the wings created by different airspeeds on the surfaces.

2. Which of the following is true when a body is stationary?
(a) The force acting on it is not in contact with it
(b) The body is in vacuum
(c) There is no force acting on it
(d) The combination of forces acting on it balance each other

Answer

Answer: (d) The combination of forces acting on it balance each other

3. Two forces with magnitude F have the resultant of same magnitude F. What is the angle between the forces?
(a) 450
(b) 600
(c) 1200
(d) 1500

Answer

Answer: (c) 1200

4. What is the angle between the forces if two forces with equal magnitudes F act on a body and the magnitude of the resultant force is F/3?

Equilibrium of Forces MCQs for NEET 1

Answer

Answer: (a) \(\cos ^{-1}\left(\frac{17}{18}\right)\)

5. In which direction should the force be applied to balance a force in the direction of North-East direction?
(a) South
(b) West
(c) South-West
(d) North-East

Answer

Answer: (c) South-West

6. Among the following which cannot be a resultant force of 5 N and 10 N?
(a) 4 N
(b) 5 N
(c) 8 N
(d) 12 N

Answer

Answer: (a) 4 N

7. The resultant of the two forces are perpendicular to the smaller of the two forces. The magnitude of one of the forces is double the magnitude of the other force. What is the angle between the forces?
(a) 600
(b) 900
(c) 1200
(d) 1500

Answer

Answer: (c) 1200

8. Which of the following depictions correctly shows the vector addition of forces \(\overrightarrow{F_{1}}\) and \(\overrightarrow{F_{2}}\) to yield a third force \(\overrightarrow{F_{3}}\)?

9. Which of the following sets of concurrent forces are in equilibrium?
(a) F1=3N,F2=5N,F3=1N
(b) F1=3N,F2=5N,F3=6N
(c) F1=3N,F2=5N,F3=9N
(d) F1=3N,F2=5N,F3=15N

Answer

Answer: (b) F1=3N,F2=5N,F3=6N

10. Two blocks connected to each other by a string is hung to the ceiling by connecting another string to the upper block. When a force F is applied on the string, it produces an acceleration of 2 m/s2. If T and T’ are the tensions in two parts of the string, then which of the following is true?
(a) T = 70.8 N and T’= 47.2 N
(b) T = 70.8 N and T’= 0
(c) T = 70.8 N and T’= 58.8 N
(d) T = 58.8 N and T’= 47.2 N

Answer

Answer: (a) T = 70.8 N and T’= 47.2 N

11. Consider the blocks shown in the diagram to be pushed against a frictionless table by a constant force. Following statements are said about the blocks:

  • All blocks move with the same acceleration
  • The net force on all the blocks is the same

Which of these statements is true?
(a) Both A and B
(b) Neither A and B
(c) Only A
(d) Only B

Answer

Answer: (c) Only A

NCERT Solutions for Class 12 Computer Science (C++) PDF Download | Chapterwise Class 12th Computer Science NCERT Solutions

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NCERT Solutions Class 12 Computer Science

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Class 12 Computer Science (C++) NCERT Solutions – PDF Free Download Chapter wise (will update soon)

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UNIT – 1 : OBJECT ORIENTED PROGRAMMING IN C++

UNIT – II : DATA STRUCTURES

UNIT – III : DATABASE MANAGEMENT SYSTEM AND SQL

UNIT – IV : BOOLEAN ALGEBRA

UNIT – V : NETWORKING & OPEN SOURCE SOFTWARE

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MCQ on Cyclotron for NEET 2020

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MCQ on Cyclotron for NEET 2020

NEET  Physics is the scoring paper in the medical entrance examination. Here, you will discover the NEET Physics MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Physics Moving Coil Galvanometer Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

MCQ on Moving Coil Galvanometer

1. The angular frequency of a cyclotron is independent of
(a) Speed
(b) Mass
(c) Magnetic field
(d) Charge

Answer

Answer: (a) Speed

2. The maximum kinetic energy of the positive ion in the cyclotron is
(a) qBR2/2m
(b) q2B2R2/2m
(c) q2B2R2/m
(d) qBR/m

Answer

Answer: (b) q2B2R2/2m

3. Cyclotron cannot accelerate
(a) Electrons
(b) Neutrons
(c) Positive ions
(d) (Both (1) and (2)

Answer

Answer: (d) Both (1) and (2)

4. The cyclotron frequency of an electron grating in a magnetic field of 1 T is approximately
(a) 28 MHz
(b) 280 MHz
(c) 2.8 GHz
(d) 28 GHz

Answer

Answer: (d) 28 GHz

5. Suppose a cyclotron is operated at an oscillator frequency of 12 MHz and a dee radius of 53cm. What is the resulting kinetic energy of the deuterons?
(a) 16.6 MeV
(b) 12 MeV
(c) 15 MeV
(d) 14 MeV

Answer

Answer: (a) 16.6 MeV

6. An alternating electric field of frequency f is applied across the dees (radius = R) of a cyclotron that is being used to accelerate protons (mass = m). The operating magnetic field (B) used in the cyclotron and the kinetic energy (K) of the proton, produced by it, are given by
(a) B = mf/e and K= 2mπ2v2R2
(b) B =2πmf/e and K= m2πvR2
(c) B =2πmf/e and K= 2mπ2v2R
(d) B = mf/e and K= m2πvR2

Answer

Answer: (c) B =2πmf/e and K= 2mπ2v2R

7. The energy of emergent protons in MeV from a cyclotron having a radius of its dees 2 m and applied magnetic field 0.8 T is (mass of proton = 1.67 x 10-27 kg).
(a) 0.961 x 10-11 J
(b) 1.22 x 10-11 J
(c) 1.5 x 10-12 J
(d) 12 x 10-11 J

Answer

Answer: (a) 0.961 x 10-11 J

8. Cyclotron can be used in
(a) Particle therapy to treat cancer
(b) Source of high energy beam for a nuclear physics experiment
(c) Produce short-lived positron-emitting isotopes for PET imaging
(d) All the above

Answer

Answer: (d) All the above

9. A proton of energy 100 eV is moving perpendicular to a magnetic field 10-4 T. The cyclotron frequency of the proton in radian/sec
(a) 2.80 x 106
(b) 9.6 x 103
(c) 5.6 x 106
(d) 1.76 x 106

Answer

Answer: (b) 9.6 x 103

10. A cyclotron can accelerate
(a) β particles
(b) α particles
(c) High-velocity gamma rays
(d) High-velocity X-rays

Answer

Answer: (b) α particles