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Physics · PYQ NEET UG 2026
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Physics · PYQ NEET UG 2026
Two identical inductors are connected in two different configurations P and Q, where a time varying current \( I(t) \) is flowing, as shown in the figure. The induced emf between points a and b for configuration P is \( E_P \) and that for configuration Q is \( E_Q \). The ratio \( E_P/E_Q \) is : [Neglect the effect of mutual inductance.]
Read answer →Physics · PYQ NEET UG 2026
N adiabatic expansion, the temperature of one mole of an ideal monatomic gas ( \gamma = 5/3 ) decreases from 60K to 50K. The work done by the gas in the process is : (Take the universal gas constant as R = 8.3 \text{ J mol}^{-1}\text{ K}^{-1})
Read answer →Physics · PYQ NEET UG 2026
Three identical capacitors $P$, $Q$ and $S$, each of the capacitance $C$, are connected to a battery of voltage $V$, as shown in the figure. If the energy stored in the capacitor $P$ and total energy stored in the system are $U_P$ and $U_T$, respectively, then the ratio $\frac{U_P}{U_T}$ is :
Read answer →Physics · PYQ NEET UG 2026
The following table presents the part of the electromagnetic spectrum and their corresponding major applications. Part of the electromagnetic spectrumApplications P. MicrowaveI. For purifying the water Q. UV raysII. For warming the food R. Gamma raysIII. For AM and FM communication systems S. Radio waveIV. For treating the Cancer cells The correct option is :-
Read answer →Physics · PYQ NEET UG 2026
Bob ( B ) of mass ( m ) at rest is hanging vertically from the ceiling via a massless string of length ( 10 \text{ m} ), as shown in the figure. Point mass ( A ) of mass ( m ) travelling horizontally with speed ( 10 \text{ ms}^{-1} ) hits bob ( B ) elastically. The bob ( B ) rises ( h ) meter after the collision. Taking the acceleration due to gravity ( g = 10 \text{ ms}^{-2} ) and neglecting the size of the bob, the value of ( h ) is :
Read answer →Physics · PYQ NEET UG 2026
एक एकांक त्रिज्या का घर्षणहीन वृत्ताकार तार क्षैतिज तल पर स्थिर है। एकांक द्रव्यमान के दो बिंदु कण एक साथ बिंदु \( A(\theta = \frac{\pi}{2}) \) से विपरीत दिशाओं में समान एकसमान कोणीय चाल से चलना शुरू करते हैं, और बिंदु \( B(\theta = -\frac{\pi}{2}) \) पर पुनः मिलते हैं। इस समय के दौरान, निम्नलिखित में से कौन सा आरेख \( \theta \) के फलन के रूप में निकाय के कुल रैखिक संवेग \( P \) के परिमाण को योजनाबद्ध रूप से निरूपित करता है?
Read answer →Physics · PYQ NEET UG 2026
A thin horizontal disc is rotating about a vertical axis passing through its fixed centre $O$. Its angular momentum is $L_A$ and $L_B$ computed about points $A$ and $B$, respectively, with $OB = 2 \times OA$. The value of $\frac{L_A}{L_B}$ is :
Read answer →Physics · PYQ NEET UG 2026
A current \( I_0 \) flows through a metallic circular loop of radius \( r \) as shown in the figure. Resistance of the segment \( ABC \) is half that of \( ADC \). Magnitude of magnetic field at the center \( O \) of the loop is :
Read answer →Physics · PYQ NEET UG 2026
A particle of mass M moves along a horizontal x axis from x=0 to x=L. The coefficient of kinetic friction varies as a function of x as \( \mu_k(x) = \mu_0 - \alpha x \), where \( \mu_0 \), \( \alpha \) are constants of appropriate dimensions, so that \( \mu_k(L)=0 \). The total work done by the frictional force during the motion is \( n\mu_0 MgL \), where g is the acceleration due to gravity. The value of n is :
Read answer →Physics · PYQ NEET UG 2026
परिष्कृत प्रतिरोध का एक चालक लूप x-y तल पर रखा है। z-दिशा में एक नियत चुंबकीय क्षेत्र है। लूप का क्षेत्रफल समय t के साथ A = A_0(1 + \sin t) के अनुसार बदलता है। वह आरेख जो समय के फलन के रूप में लूप में क्षयित शक्ति P के गुणात्मक व्यवहार को सही ढंग से दर्शाता है, वह है :
Read answer →Physics · PYQ NEET UG 2026
Consider the following nuclear reaction : $^{238}U \rightarrow ^{234}Th + ^4He Take masses of $^{238}U,^{234}Thand^4Heas238.050 u,234.043 uand4.003 u,respectively.TheQvalueforthereaction,inkeV$, is : [Given : $1 u = 931.5 MeV c^{-2}$]
Read answer →Physics · PYQ NEET UG 2026
Two infinitely long parallel conducting wires A and B carry currents I and 2I, respectively, in the same direction. The wire A has uniform mass per unit length \( \lambda \) and lies on an insulated floor. The wire B is kept fixed at a height h above the floor. The minimum magnitude of h so that the wire A does not rise from the floor is : [g is the acceleration due to gravity and \( \mu_0 \) is the permeability of free space.]
Read answer →Physics · PYQ NEET UG 2026
Three identical p-n junction diodes ( D_1, D_2 ) and ( D_3 ) are connected across a battery as shown in the figure. If the width of the depletion regions of ( D_1, D_2 ) and ( D_3 ) are ( W_1, W_2 ) and ( W_3 ), respectively, then the correct option is :
Read answer →Physics · PYQ NEET UG 2026
For sound waves, if the number of nodes for the \( 5^{\text{th}} \) harmonic of an open-ended pipe is \( n \) and that for the \( 9^{\text{th}} \) harmonic of the same pipe with one of its ends closed is \( m \), the ratio \( \frac{n}{m} \) is :
Read answer →Physics · PYQ NEET UG 2026
One main scale division of a Vernier calliper is equal to \( 1\text{ mm} \) and the number of divisions on the Vernier scale is \( 10 \). When both the jaws touch each other, the Vernier scale shifts to the left of zero of the main scale in such a way that \( 4^{\text{th}} \) Vernier division coincides with a division of the main scale. If this Vernier calliper measures the length of a wire to be \( 1\text{ cm} \), the actual length of the wire is :
Read answer →Physics · PYQ NEET UG 2026
अंतिम वेग प्रयोग का उपयोग करके द्रव्यों की श्यानता के मापन में, समान त्रिज्या की लेकिन भिन्न घनत्व वाली गोलाकार गेंदों का उपयोग किया जाता है। गोलाकार गेंद के घनत्व \( (\sigma) \) से द्रव्य के घनत्व \( (\rho) \) के अनुपात के साथ अंतिम वेग \( v \) का परिवर्तन सबसे अच्छे रूप में दर्शाया गया है :
Read answer →Physics · PYQ NEET UG 2026
Consider the reversible processes for 1.0 mol of an ideal gas as shown in the figure. \( w_1, w_2, w_3 \) and \( w_4 \) represent work done (in calories) in the processes 1, 2, 3 and 4, respectively; \( \Delta U_2 \) and \( \Delta U_4 \) are changes in the internal energy for the processes 2 and 4, respectively. [use \( R = 2 \text{ cal K}^{-1} \text{ mol}^{-1} \)] The correct option is
Read answer →Physics · PYQ NEET UG 2026
One mole of an ideal monatomic gas undergoes a cyclic process as shown in the figure. The total heat supplied to the gas is :
Read answer →Physics · PYQ NEET UG 2026
Consider three media \( P \), \( Q \) and \( R \) with refractive indices \( 1 \), \( 1.25 \), and \( 1.5 \), respectively. The medium \( Q \) having a thickness of \( 5\text{ cm} \) is placed between extended media \( P \) and \( R \) as shown in the figure. An object \( O \) is placed at the center of medium \( Q \). If viewed from medium \( P \) near the normal direction, the apparent depth of \( O \) is \( h_1 \). For similar observation from medium \( R \), the apparent depth is \( h_2 \). The value of \( |h_1 - h_2| \), in \( \text{cm} \), is :
Read answer →Physics · PYQ NEET UG 2026
Consider a spring-mass simple harmonic oscillator in one dimension. The mass of the particle is $m$ kg and the spring constant is $k$ $\text{Nm}^{-1}$. At a given instant, the extension of the spring is $x$ meter and the speed of the particle is $v$ $\text{ms}^{-1}$. On the $x - v$ plane, if the graph of $v$ as a function of $x$ is a circle, then the correct option is :
Read answer →Physics · PYQ NEET UG 2026
Consider a fixed uniformly charged insulating sphere with radius R and total charge +Q. A point charge -q (q<
Read answer →Physics · PYQ NEET UG 2026
