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Physics · PYQ NEET UG 2022
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Physics · PYQ NEET UG 2022
A ball is projected with a velocity, \( 10\text{ ms}^{-1} \), at an angle of \( 60^\circ \) with the vertical direction. Its speed at the highest point of its trajectory will be:
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A nucleus of mass number 189 splits into two nuclei having mass number 125 and 64. The ratio of radius of two daughter nuclei respectively is:
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A capacitor of capacitance \( C = 900\text{ pF} \) is charged fully by \( 100\text{ V} \) battery B as shown in figure (a). Then it is disconnected from the battery and connected to another uncharged capacitor of capacitance \( C = 900\text{ pF} \) as shown in figure (b). The electrostatic energy stored by the system (b) is:
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If the initial tension on a stretched string is doubled, then the ratio of the initial and final speeds of a transverse wave along the string is:
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A biconvex lens has radii of curvature, \( 20\text{ cm} \) 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 long solenoid of radius \( 1\text{ mm} \) has \( 100 \) turns per \( \text{mm} \). If \( 1\text{ A} \) current flows in the solenoid, the magnetic field strength at the centre of the solenoid is:
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When two monochromatic lights of frequency, \( \nu \) and \( 2\nu \) are incident on a photoelectric metal, their stopping potential becomes \( \frac{V_s}{2} \) and \( V_s \) respectively. The threshold frequency for this metal is:
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Two resistors of resistance, \( 100\ \Omega \) and \( 200\ \Omega \) are connected in parallel in an electrical circuit. The ratio of the thermal energy developed in \( 100\ \Omega \) to that in \( 200\ \Omega \) in a given time is:
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एक श्यान द्रव के लंबे स्तम्भ में एक गोलाकार गेंद गिराई जाती है। दर्शाए गए ग्राफ में वह वक्र जो समय (t) के फलन के रूप में गेंद की चाल (\( \upsilon \)) को निरूपित करता है, है:
Read answer →Physics · PYQ NEET UG 2022
A series LCR circuit with inductance \( 10\text{ H} \), capacitance \( 10\text{ }\mu\text{F} \), resistance \( 50\text{ }\Omega \) is connected to an ac source of voltage, \( V = 200\sin(100t)\text{ volt} \). If the resonant frequency of the LCR circuit is \( u_o \) and the frequency of the ac source is \( \nu \), then:
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Match List-I with List-II: List-I List-II (a) Gravitational constant (G) (i) \( [L^2 T^{-2}] \) (b) Gravitational potential energy (ii) \( [M^{-1} L^3 T^{-2}] \) (c) Gravitational potential (iii) \( [LT^{-2}] \) (d) Gravitational intensity (iv) \( [ML^2 T^{-2}] \) Choose the correct answer from the options given below:
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Two transparent media A and B are separated by a plane boundary. The speed of light in those media are \( 1.5 \times 10^8\text{ m/s} \) and \( 2.0 \times 10^8\text{ m/s} \), respectively. The critical angle for a ray of light for these two media is:
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An electric lift with a maximum load of \( 2000\text{ kg} \) (lift + passengers) is moving up with a constant speed of \( 1.5\text{ ms}^{-1} \). The frictional force opposing the motion is \( 3000\text{ N} \). The minimum power delivered by the motor to the lift in watts is: (\( g = 10\text{ ms}^{-2} \))
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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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Two hollow conducting spheres of radii \( R_1 \) and \( R_2 \) (\( R_1 \gg R_2 \)) have equal charges. The potential would be:
Read answer →Physics · PYQ NEET UG 2022
In half wave rectification, if the input frequency is \( 60\text{ Hz} \), then the output frequency would be:
Read answer →Physics · PYQ NEET UG 2022
A light ray falls on a glass surface of refractive index \( \sqrt{3} \), at an angle \( 60^\circ \). The angle between the refracted and reflected rays would be:
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An ideal gas undergoes four different processes from the same initial state as shown in the figure below. Those processes are adiabatic, isothermal, isobaric and isochoric. The curve which represents the adiabatic process among \( 1, 2, 3 \) and \( 4 \) is:
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The energy that will be ideally radiated by a \( 100\text{ kW} \) transmitter in \( 1 \) hour is:
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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 \( 600\text{ nm} \) wavelength is used. If the wavelength of light is changed to \( 400\text{ nm} \), then the number of fringes he would observe in the same region of the screen is:
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A copper wire of length \( 10\text{ m} \) and radius \( (10^{-2}/\pi)\text{ m} \) has electrical resistance of \( 10\ \Omega \). The current density in the wire for an electric field strength of \( 10\text{ (V/m)} \) is:
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Plane angle and solid angle have:
Read answer →Physics · PYQ NEET UG 2022
