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Physics · PYQ NEET UG 2024
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Physics · PYQ NEET UG 2024
A thin flat circular disc of radius 4.5 cm is placed gently over the surface of water. If surface tension of water is \( 0.07 \text{ N m}^{-1} \), then the excess force required to take it away from the surface is:
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वह ग्राफ जो \( (\frac{1}{\lambda^2}) \) तथा इसकी गतिज ऊर्जा, \( E \) के परिवर्तन को दर्शाता है, है (जहाँ \( \lambda \) मुक्त कण की दे ब्रॉग्ली तरंगदैर्ध्य है) :
Read answer →Physics · PYQ NEET UG 2024
The mass of a planet is \( \frac{1}{10} \)th that of the earth and its diameter is half that of the earth. The acceleration due to gravity on that planet is :
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If \( x = 5\sin(\pi t + \frac{\pi}{3})\text{ m} \) represents the motion of a particle executing simple harmonic motion, the amplitude and time period of motion, respectively, are :
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In an ideal transformer, the turns ratio is \( \frac{N_p}{N_s} = \frac{1}{2} \). The ratio \( V_s : V_p \) is equal to (the symbols carry their usual meaning):
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Match List I with List II. List I (Spectral Lines of Hydrogen for transitions from): A. \( n_2 = 3 \) to \( n_1 = 2 \) B. \( n_2 = 4 \) to \( n_1 = 2 \) C. \( n_2 = 5 \) to \( n_1 = 2 \) D. \( n_2 = 6 \) to \( n_1 = 2 \) List II (Wavelengths (nm)): I. 410.2 II. 434.1 III. 656.3 IV. 486.1 Choose the correct answer from the options given below :
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A wire of length \( l \) and resistance \( 100\ \Omega \) is divided into 10 equal parts. The first 5 parts are connected in series while the next 5 parts are connected in parallel. The two combinations are again connected in series. The resistance of this final combination is:
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A horizontal force \( 10\text{ N} \) is applied to a block A as shown in figure. The mass of blocks A and B are \( 2\text{ kg} \) and \( 3\text{ kg} \), respectively. The blocks slide over a frictionless surface. The force exerted by block A on block B is:
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A small telescope has an objective of focal length \( 140\text{ cm} \) and an eye piece of focal length \( 5.0\text{ cm} \). The magnifying power of telescope for viewing a distant object is:
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A wheel of a bullock cart is rolling on a level road as shown in the figure below. If its linear speed is \( v \) in the direction shown, which one of the following options is correct (\( P \) and \( Q \) are any highest and lowest points on the wheel, respectively)?
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Two bodies A and B of same mass undergo completely inelastic one dimensional collision. The body A moves with velocity \( v_1 \) while body B is at rest before collision. The velocity of the system after collision is \( v_2 \). The ratio \( v_1 : v_2 \) is:
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The output (\( Y \)) of the given logic gate is similar to the output of an/a :
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If the monochromatic source in Young's double slit experiment is replaced by white light, then
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The following graph represents the T-V curves of an ideal gas (where T is the temperature and V the volume) at three pressures \( P_1 \), \( P_2 \) and \( P_3 \) compared with those of Charles's law represented as dotted lines. Then the correct relation is:
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An iron bar of length L has magnetic moment M. It is bent at the middle of its length such that the two arms make an angle \( 60^\circ \) with each other. The magnetic moment of this new magnet is:
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A light ray enters through a right angled prism at point P with the angle of incidence \( 30^\circ \) as shown in figure. It travels through the prism parallel to its base \( BC \) and emerges along the face \( AC \). The refractive index of the prism is:
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Consider the following statements A and B and identify the correct answer : A. For a solar-cell, the I-V characteristics lies in the IV quadrant of the given graph. B. In a reverse biased pn junction diode, the current measured in (\( \mu\text{A} \)), is due to majority charge carriers.
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A thermodynamic system is taken through the cycle \( abcda \). The work done by the gas along the path \( bc \) is :
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The moment of inertia of a thin rod about an axis passing through its mid point and perpendicular to the rod is \( 2400 \text{ g cm}^2 \). The length of the \( 400 \text{ g} \) rod is nearly :
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An unpolarised light beam strikes a glass surface at Brewster's angle. Then
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A parallel plate capacitor is charged by connecting it to a battery through a resistor. If \( I \) is the current in the circuit, then in the gap between the plates :
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In a vernier calipers, \( (N + 1) \) divisions of vernier scale coincide with \( N \) divisions of main scale. If 1 MSD represents \( 0.1 \text{ mm} \), the vernier constant (in cm) is :
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