Here we will provide you the 50+ MCQ Questions of Physical World for NEET-UG. Physical World is the chapter 1 in Class XI or Class 11 Physics NCERT Unit Physical World NEET (conducted by NTA) is based on the NCERT book.
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These 50+ MCQ questions are selected by the experts of studyrate.in and these are more difficult questions, which will help you to better understand Physical World NEET MCQ Questions with Answers.
Physical World NEET MCQ
A particle is moving in a circular path with uniform speed v. Which of the following statements about the particle’s velocity and acceleration is correct?
A. Both the velocity and acceleration are constant.
B. The velocity is constant, but the acceleration is not constant.
C. The acceleration is constant, but the velocity is not constant.
D. Both the velocity and acceleration are not constant.
A charge q is placed at the center of a cube of side ‘a’. What is the electric flux passing through one of the faces of the cube?
A. q/6ε0
B. q/4ε0
C. q/3ε0
D. q/ε0
A wire of length ‘l’ and mass ‘m’ is stretched between two rigid supports. If the wire is vibrating in its first harmonic, what is the tension in the wire?
A. (m/2l)ω²
B. (m/4l)ω²
C. (m/πl)ω²
D. (m/8l)ω²
A photon of wavelength 400 nm is incident on a metal surface with a work function of 3.2 eV. What is the maximum kinetic energy of the emitted electrons?
A. 2.0 eV
B. 1.6 eV
C. 0.8 eV
D. 0.4 eV
A particle is moving in a straight line with an initial velocity of 10 m/s. It is subjected to a constant acceleration of 2 m/s² for 5 seconds. What is the distance traveled by the particle in the first 3 seconds?
A. 40 m
B. 30 m
C. 20 m
D. 10 m
Which of the following statements is true for a reversible adiabatic process?
A. ΔU = 0
B. ΔS = 0
C. ΔQ = 0
D. ΔW = 0
An ideal gas is compressed isothermally. Which of the following statements is true?
A. The work done by the gas is equal to the heat absorbed by the gas.
B. The work done by the gas is less than the heat absorbed by the gas.
C. The work done by the gas is greater than the heat absorbed by the gas.
D. None of the above.
A current-carrying wire is placed in a uniform magnetic field. What happens to the force on the wire if the direction of the current is reversed?
A. The force remains the same.
B. The force becomes zero.
C. The force becomes half.
D. The force becomes double.
An object is placed in front of a convex lens. Which of the following statements is true?
A. The image formed is always virtual and smaller than the object.
B. The image formed is always real and smaller than the object.
C. The image formed can be either real or virtual and can be larger or smaller than the object.
D. The image formed is always virtual and larger than the object.
The coefficient of linear expansion of a solid is α. If the solid is heated through a temperature difference of ΔT, what is the change in its volume?
A. αΔT
B. 2αΔT
C. 3αΔT
D. 4αΔT
A light beam passes from air into a material with an index of refraction of 1.5. What happens to the wavelength and frequency of the light?
A. The wavelength increases and the frequency decreases.
B. The wavelength decreases and the frequency increases.
C. The wavelength and frequency both increase.
D. The wavelength and frequency both decrease.
Two thin lenses of focal lengths +20 cm and -10 cm are placed in contact. What is the effective focal length of the combination?
A. -8.3 cm
B. +8.3 cm
C. +10 cm
D. -10 cm
A spherical mirror has a radius of curvature of 20 cm. An object is placed at a distance of 10 cm from the mirror. What is the position and nature of the image?
A. The image is real and inverted, located at a distance of 20 cm from the mirror.
B. The image is virtual and erect, located at a distance of 10 cm from the mirror.
C. The image is real and inverted, located at a distance of 40 cm from the mirror.
D. The image is virtual and erect, located at a distance of 20 cm from the mirror.
A proton and an electron are accelerated by the same potential difference. Which of the following statements is true?
A. The proton gains more kinetic energy than the electron.
B. The electron gains more kinetic energy than the proton.
C. The proton and the electron gain the same amount of kinetic energy.
D. None of the above.
A solid sphere, a hollow sphere, and a solid cylinder of the same mass and same radius are released from rest at the top of an incline. Which of the following objects reaches the bottom first?
A. The solid sphere.
B. The hollow sphere.
C. The solid cylinder.
D. They all reach the bottom at the same time.
An ideal gas undergoes a process in which its internal energy increases by 100 J and the system does 50 J of work. How much heat is absorbed or released by the gas?
A. 50 J absorbed
B. 100 J absorbed
C. 150 J absorbed
D. 100 J released
An electromagnetic wave travels from air into a material with an index of refraction of 1.5. What happens to the speed and wavelength of the wave?
A. The speed decreases and the wavelength increases.
B. The speed increases and the wavelength decreases.
C. The speed and wavelength both increase.
D. The speed and wavelength both decrease.
A capacitor is charged by a battery and then disconnected from the battery. What happens to the charge on the capacitor as time passes?
A. The charge on the capacitor increases.
B. The charge on the capacitor decreases.
C. The charge on the capacitor remains constant.
D. The charge on the capacitor oscillates.
A magnetic field is applied perpendicular to a current-carrying wire. Which of the following statements is true?
A. The wire experiences a force in the direction of the magnetic field.
B. The wire experiences a force perpendicular to both the current and the magnetic field.
C. The wire experiences a force in the direction opposite to the magnetic field.
D. The wire experiences no force.
An object is placed at a distance of 20 cm from a convex lens of focal length 10 cm. What is the position and nature of the image?
A. The image is virtual and erect, located at a distance of 40 cm from the lens.
B. The image is real and inverted, located at a distance of 20 cm from the lens.
C. The image is real and inverted, located at a distance of 40 cm from the lens.
D. The image is virtual and erect, located at a distance of 10 cm from the lens.
An object is placed at the focus of a concave mirror. What is the position and nature of the image?
A. The image is real and inverted, located at the focus of the mirror.
B. The image is virtual and erect, located at infinity.
C. The image is virtual and erect, located at the focus of the mirror.
D. No image is formed.
Two point charges of +2 μC and -3 μC are placed 1 m apart. What is the electric field at a point located 0.5 m from the +2 μC charge and on the line joining the two charges?
A. 2.3 × 10^4 N/C
B. 1.5 × 10^4 N/C
C. 1.0 × 10^4 N/C
D. 7.5 × 10^3 N/C
A block of mass m is placed on a horizontal surface. A spring of spring constant k is attached to the block and pulled with a force F. If the coefficient of kinetic friction between the block and the surface is μ, what is the acceleration of the block?
A. (F – μmg) / m
B. (F – kx – μmg) / m
C. (F – kx) / m
D. (F – kx + μmg) / m
An ideal gas is taken through a Carnot cycle between temperatures T1 and T2. What is the efficiency of the cycle?
A. 1 – T2 / T1
B. T2 / T1
C. 1 – T1 / T2
D. T1 / T2
A small object is placed in front of a concave mirror. As the object is moved closer to the mirror, what happens to the size and position of the image?
A. The size decreases and the position moves closer to the mirror.
B. The size increases and the position moves closer to the mirror.
C. The size decreases and the position moves farther from the mirror.
D. The size increases and the position moves farther from the mirror.
An AC circuit contains a resistor, an inductor, and a capacitor. What happens to the phase angle between the voltage and the current as the frequency of the AC voltage is increased?
A. The phase angle decreases.
B. The phase angle increases.
C. The phase angle remains constant.
D. The phase angle oscillates.
An electron is accelerated from rest through a potential difference of 100 V. What is the de Broglie wavelength of the electron?
A. 1.23 × 10^-9 m
B. 2.45 × 10^-9 m
C. 4.89 × 10^-9 m
D. 9.78 × 10^-9 m
A circuit contains a resistor, a capacitor, and an inductor in series. What happens to the current in the circuit as the frequency of the AC voltage is increased?
A. The current increases.
B. The current decreases.
C. The current remains constant.
D. The current oscillates.
A small object is placed at the center of a uniform spherical shell. What is the gravitational force on the object due to the shell?
A. Zero
B. 4πGρr^3 / 3
C. GmM / r^2
D. GmρV
An ideal gas is taken through an isothermal process. What is the change in the internal energy of the gas?
A. Zero
B. Positive
C. Negative
D. Cannot be determined without additional information
A particle is moving in a circular path of radius r with a constant speed v. What is the magnitude of the net force acting on the particle?
A. 0
B. mv^2 / r
C. mvr
D. mv / r
A block of mass m is attached to a spring of spring constant k and placed on a smooth horizontal surface. The block is pulled a distance x to one side and released. What is the period of oscillation of the block?
A. 2π√(m/k)
B. 2π√(k/m)
C. 2π√(mx/k)
D. 2π√(kx/m)
A capacitor of capacitance C is charged to a potential difference V and then disconnected from the charging circuit. The capacitor is then connected to an uncharged capacitor of capacitance 2C. What is the final potential difference across the two capacitors?
A. V/3
B. V/2
C. 2V/3
D. V
A small object is placed in front of a converging lens. What happens to the size and position of the image as the object is moved closer to the lens?
A. The size decreases and the position moves closer to the lens.
B. The size increases and the position moves closer to the lens.
C. The size decreases and the position moves farther from the lens.
D. The size increases and the position moves farther from the lens.
A wire of length L and mass M is fixed at one end and held horizontally. A mass m is attached to the free end of the wire and released from rest. What is the frequency of the resulting oscillations?
A. √(g/L)
B. √(gL/M)
C. √(L/Mg)
D. √(MgL/m)
We hope there NEET MCQ of Class 11 Physical World will help you to score an excellent rank in NEET-UG. If you have any queries feel free to write in the comments section. We at Study Rate are always ready to serve our students.
