NEET 2022

188 Questions • 200 Minutes • 2022

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The angle between the electric lines of force and the equipotential surface is :

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As the temperature increases, the electrical resistance :

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A copper wire of length 10 m and radius $(10^{-2}/\sqrt{\pi})$ m has electrical resistance of 10 Ω. The current density in the wire for an electric field strength of 10 V/m is :

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Two resistors of resistance, 100 Ω and 200 Ω are connected in parallel in an electrical circuit. The ratio of the thermal energy developed in 100 Ω to that in 200 Ω in a given time is :

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Given below are two statements : Statement I : Biot-Savart's law gives us the expression for the magnetic field strength of an infinitesimal current element ($Id\vec{l}$) of the current carrying conductor only. Statement II : Biot-Savart's law is analogous to Coulomb's inverse square law of charge q, with the former being related to the field produced by a scalar source, $Id\vec{l}$, while the latter being produced by a vector source, q. In light of above statements choose the most appropriate answer from the options given below

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A long solenoid of radius 1 mm has 100 turns per mm. If 1A current flows in the solenoid, the magnetic field strength at the centre of the solenoid is :

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A square loop of side 1 m and resistance 1 Ω is placed in a magnetic field of 0.5T. If the plane of loop of perpendicular to the direction of a magnetic field, the magnetic flux through the loop is :

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The peak voltage of the ac source is equal to

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When light propagates through a material medium of relative permittivity $\epsilon_r$ and relative permeability $\mu_r$, the velocity of light, v is given by : (c - velocity of light in vacuum)

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Match List-I with List-II [table] List-I (Electromagnetic waves) | List-II (Wavelength) ; (a) AM radio waves | (i) $10^{-10}$ m ; (b) Microwaves | (ii) $10^2$ m ; (c) Infraraed radiations | (iii) $10^{-2}$ m ; (d) X-rays | (iv) $10^{-4}$ m [/table] Choose the correct answer from the options given below:

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A biconvex lens has radii of curvature, 20 cm each. If the refractive index of the material of the lens is 1.5, the power of the lens is :

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A light ray falls on a glass surface of refractive index $\sqrt{3}$, at an angle 60°. The angle between the refracted and reflected rays would be :

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In a Young's double slit experiment, a student observes 8 fringes in a certain segment of screen when a monochromatic light of 600 nn wavelength is used. If the wavelength of light is changed to 400 nm, then the number of fringes he would observe in the same region of the screen is

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The graph which shows the variation of the de Broglie wavelength (λ) of a particle and its associated momentum (p) is :

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When two monochromatic light of frequency, υ and υ/2 are incident on a photoelectric metal, their stopping potential becomes $V_s/2$ and $V_s$ respectively. The threshold frequency for this metal is :

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Let $T_1$ and $T_2$ be the energy of an electron in the first and second excited states of hydrogen atom, respectively. According to the Bohr's model of an atom, the ratio $T_1 : T_2$ is :

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In the given nuclear reaction, the element X is : $^{22}_{11}Na \rightarrow X + e^+ + \nu$

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In half wave rectification, if the input frequency is 60 Hz, then the output frequency would be:

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The area of a rectangular field (in $m^2$) of length 55.3 m and breadth 25 m after rounding off the value for correct significant digits is :

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A ball is projected with a velocity, 10 $ms^{-1}$, at an angle of 60° with the vertical direction. Its speed at the highest point of its trajectory will be :

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Paper Info

Exam: NEET
Year: 2022
Questions: 188
Duration: 200 mins

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