List of top Physics Questions asked in NEET (UG)

$^{290}_{82}X\stackrel{\alpha}{\rightarrow}Y\stackrel{e^+}{\rightarrow}Z\stackrel{\beta^-}{\rightarrow}P\stackrel{e^-}{\rightarrow}Q$
In the nuclear emission stated above, the mass number and atomic number of the product Q respectively, are :

At any instant of time t, the displacement of any particle is given by 2t – 1 (SI unit) under the influence of force of 5N. The value of instantaneous power is (in SI unit):

A light ray enters through a right angled prism at point P with the angle of incidence 30° 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 :

An object falls from a height of 10 m above the ground. After striking the ground it loses $50\%$ of its kinetic energy. The height upto which the object can rebounce from the ground is:

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 Nm^-1, then the excess force required to take it away from the surface is :

The radius of gyration of a solid sphere of mass $5 \, \text{kg}$ about $XY$ is $5 \, \text{m}$ as shown in figure.
The radius of the sphere is $\frac{5x}{\sqrt{7}} \, \text{m}$, then the value of $x$ is:

In the above diagram, a strong bar magnet is moving towards solenoid-2 from solenoid-1. The direction of induced current in solenoid-1 and that in solenoid-2, respectively, are through the directions :

In an electrical circuit, the voltage is measured as V = (200 ± 4) volt and the current is measured as I = (20 ± 0.2) A. The value of the resistance is:

The output (Y) of the given logic gate is similar to the output of an/a :

Given below are two statements:
Statement I: Atoms are electrically neutral as they contain equal number of positive and negative charges.
Statement II: Atoms of each element are stable and emit their characteristic spectrum.
In the light of the above statements, choose the most appropriate answer from the options given below

A 10 µF capacitor is connected to a 210 V, 50 Hz source as shown in figure. The peak current in the circuit is nearly (π = 3.14) :

:

The terminal voltage of the battery, whose emf is$10V$ and internal resistance$1Ω$, when connected through an external resistance of $4Ω$ as shown in the figure is:

Two heaters A and B have power rating of 1 kW and 2 kW, respectively. Those two are first connected in series and then in parallel to a fixed power source. The ratio of power outputs for these two cases is :

A horizontal force 10 N is applied to a block 4 as shown in figure. The mass of blocks A and B are 2 kg and 3 kg, respectively. The blocks slide over a frictionless surface. The force exerted by block A on block B is:

A thin spherical shell is charged by some source. The potential difference between the two points C and P (in V) shown in the figure is:
(Take $\frac{1}{4}\pi\epsilon_0 = 9 × 109$$\frac{1}{4\pi\epsilon_0}=9\times10^9$ SI units)

If $x=5\sin(\pi i+\frac{\pi}{3})m$ represents the motion of a particle executing simple harmonic motion, the amplitude and time period of motion, respectively, are :

The graph which shows the variation of $\big(\frac{1}{\lambda^2} \big)$and its kinetic energy, is $E$ (where $λ$ is de Broglie wavelength of a free particle):

A logic circuit provides the output y as per the following truth table:

A	B	Y
0	0	1
0	1	0
1	0	1
1	1	0

The expression for the output Y is:

In an ideal transformer, the turns ratio is $N_p/N_s$ =1/2 .The ratio $V_S:V_P$ is equal to (the symbols carry their usual meaning):

A bob is whirled in a horizontal plane by means of a string with an initial speed of ω rpm. The tension in the string is T. If speed becomes 2ω while keeping the same radius, the tension in the string becomes:

Match List I with List II.

List I (Material)		List II (Subsceptibility(χ))
A.	Diamagnetic	I.	χ = 0
B.	Ferromagnetic	II.	0 > χ ≥ –1
C.	Paramagnetic	III.	χ >> 1
D.	Non-magnetic	IV.	0 < χ < ε (a small positive number)

Choose the correct answer from the options given below:

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 :

In a Vernier caliper, $N+1$ divisions of vernier scale coincide with $N$ divisions of main scale. If 1 MSD represents 0.1 mm, the vernier constant (in cm) is:

The given circuit shows a uniform straight wire AB of 40 cm length fixed at both ends. In order to get zero reading in the galvanometer G, the free end of J is to be placed from B at:

A metallic bar of Young’s modulus, 0.5 × 10¹¹ N m^–2 and coefficient of linear thermal expansion 10^–5 °C^–1, length 1 m and area of cross-section 10^–3 m² is heated from 0°C to 100°C without expansion or bending. The compressive force developed in it is :