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List of top Physics Questions asked in NEET (UG)
The particle executing simple harmonic motion has a kinetic energy
$ K_0 \cos^2 \omega t $
.. The maximum values of the potential energy and the total energy are respectively
NEET (UG) - 2007
NEET (UG)
Physics
Waves and Oscillations
Two condensers, one of capacity
\(C\)
and the other capacity
\(\frac{C}{2}\)
are connected to a
\(V\)
-volt battery, as shown in the figure.
The work done in charging fully both the condensers is
NEET (UG) - 2007
NEET (UG)
Physics
electrostatic potential and capacitance
Two satellites of earth, $ S_1 $ and $ S_2 $ , are moving in the same orbit. The mass of $ S_1 $ is four times the mass of $ S_2 $ . Which one of the following statements is true ?
NEET (UG) - 2007
NEET (UG)
Physics
Gravitation
The resistance of an ammeter is $ 13 \Omega$ and its scale is graduated for a current upto $100$ amps. After an additional shunt has been connected to this ammeter it becomes possible to measure currents upto $750$ amperes by this meter. The value of shunt-resistance is
NEET (UG) - 2007
NEET (UG)
Physics
Moving charges and magnetism
A Carnot engine whose sink is at 300 K has an efficiency of
$40 \%. $
By how much should the temperature of source be increased so as to increase its efficiency by
$50 \%$
of original efficiency :-
NEET (UG) - 2006
NEET (UG)
Physics
Thermodynamics
The molar specific heat at constant pressure of an ideal gas is (7/2)R. The ratio of specific heat at constant pressure to that at constant volume is :-
NEET (UG) - 2006
NEET (UG)
Physics
Thermodynamics
Two vibrating tuning forks produce waves given
$y_1 = 4 \sin 500 \pi t$
and
$y_2 = 2 \sin 506 \,\pi t.$
Number of beats produced per minute is
NEET (UG) - 2006
NEET (UG)
Physics
Waves
Two sound waves with wavelengths 5.0 m and 5.5. m respectively, each propagate in a gas with velocity 330 m/s. We expect the following number of beats per second :-
NEET (UG) - 2006
NEET (UG)
Physics
Waves
A transverse wave propagating along x-axis is represented by
$y(x, t)=8.0 \sin(0.5\pi x-4\pi t-\pi/4)$
where x is in metres and t is in seconds. The speed of the wave is :-
NEET (UG) - 2006
NEET (UG)
Physics
Waves
An electric dipole of moment
$\vec{p}$
is lying along a uniform electric field
$\vec{E}$
. The work done in rotating the dipole by 90
$^{\circ}$
is :-
NEET (UG) - 2006
NEET (UG)
Physics
electrostatic potential and capacitance
In the circuit shown, if a conducting wire is connected between points A and B, the current in this wire will:
NEET (UG) - 2006
NEET (UG)
Physics
Current electricity
The core of a transformer is laminated because :-
NEET (UG) - 2006
NEET (UG)
Physics
Transistors
A rectangular block of mass
$m$
and area of cross section . A floats in a liquid of density
$\rho$
. If it is given a small vertical displacement from equilibrium it undergoes oscillation with a time period
$T$
, then :
NEET (UG) - 2006
NEET (UG)
Physics
Waves and Oscillations
Kirchhoff's first and second laws of electrical circuits are consequences of
NEET (UG) - 2006
NEET (UG)
Physics
Current electricity
The binding energy of deuteron is 2.2 MeV and that of
$^4_2$
He is 28 MeV. If two deuterons are fused to form one
$^4_2He$
then the energy released is :-
NEET (UG) - 2006
NEET (UG)
Physics
Nuclear physics
The moment of inertia of a uniform circular disc of radius
$R$
and mass
$M$
about an axis touching the disc at its diameter and normal to the disc is :
NEET (UG) - 2006
NEET (UG)
Physics
Moment Of Inertia
The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm the potential energy stored in it is
NEET (UG) - 2006
NEET (UG)
Physics
potential energy
The velocity
$v$
of a particle at time
$t$
is given by
$v=at+\frac{b}{t+c}$
, where
$a$
,
$b$
and
$c$
are constants. The dimensions of
$a$
,
$b$
and
$c$
are, respectively,
NEET (UG) - 2006
NEET (UG)
Physics
Dimensional Analysis
When a charged particle moving with velocity
$\vec{v}$
is subjected to a magnetic field of induction
$\vec{B}$
, the force on it is non-zero. This implies the :-
NEET (UG) - 2006
NEET (UG)
Physics
Moving charges and magnetism
A photocell employs photoelectric effect to convert :-
NEET (UG) - 2006
NEET (UG)
Physics
Dual nature of matter
Above Curie temperature :
NEET (UG) - 2006
NEET (UG)
Physics
Magnetism and matter
A black body at 1227°C emits radiations with maximum intensity at a wavelength of 5000 Å. If the temperature of the body is increased by 1000°C, the maximum intensity will be observed at :
NEET (UG) - 2006
NEET (UG)
Physics
thermal properties of matter
A transistor-oscillator using a resonant circuit with an inductor L (of negligible resistance) and a capacitor C in series produce oscillations of frequency f. If L is doubled and C is changed to 4C, the frequency will be :
NEET (UG) - 2006
NEET (UG)
Physics
Semiconductor electronics: materials, devices and simple circuits
In a radioactive material the activity at time t
1
is R
1
and at a later time t
2
, it is R
2
. If the decay constant of the material is
\(\lambda\)
, then :
NEET (UG) - 2006
NEET (UG)
Physics
Nuclei
Ionization potential of hydrogen atom is 13.6 eV. Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. According to Bohr's theory, the spectral lines emitted by hydrogen will be :
NEET (UG) - 2006
NEET (UG)
Physics
Atoms
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