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JEE Main
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Physics
List of top Physics Questions asked in JEE Main
Wavelengths assigned to gamma rays, infra-red rays, UV rays and microwaves are 1 , 2 , 3 & 4 respectively. Then :
JEE Main
Physics
Electromagnetic Spectrum
The width of the one slit in YDSE is four times the other slit. Then ratio of maximum to the minimum intensity at screen is
JEE Main
Physics
Youngs double slit experiment
The circuit diagram shown is equivalent to
JEE Main
Physics
Logic gates
Statement 1 : In photoelectric effect, number of photoelectrons emitted are proportional to frequency of incident light.
Statement 2 : Maximum kinetic energy of photoelectrons is proportional to frequency of incident light.
JEE Main
Physics
Photoelectric Effect
Assertion (A) : The contact angle depends on material of solid and liquid.
Reason (R) : Height of the liquid in a capillary tube is independent of the radius of the tube.
JEE Main
Physics
Surface tension
Correct match for phasors of voltage and current for given elements is
a. Inductive
b. Capacitive
C. Resistive
JEE Main
Physics
Phasor diagrams
A 2 kg brick is placed on an inclined plane of inclination 45°. The brick is at rest. The minimum coefficient of static friction is:
JEE Main
Physics
Friction
One mole of an ideal monatomic gas compressed adiabatically from volume 2 V to V . If initially temperature of gas was T then the magnitude of work done in this process is
JEE Main
Physics
work done thermodynamics
P, Q, R, S are 4 symmetric points on a horizontal circle of radius of 4 km. What is the displacement when a car moves from P to R along the given circular path.
JEE Main
Physics
distance and displacement
A massless rod has a point mass attached to one end while the other end is hinged. The rod is released from the position shown. The speed of the mass at the bottom most point is $(R = 14 m, g = 10 m/s^2)$
JEE Main
Physics
rotational motion
The equation of stationary wave is given as
\(y=2A\sin(\frac{2\pi}{\lambda}\cdot nt) \cos (\frac{2\pi}{\lambda}\cdot x)\)
, then which of the following is not correct.
JEE Main
Physics
single slit diffraction
Consider the network shown:
The equivalent resistance of the network is
JEE Main
Physics
Resistance
An electron is projected along the axis of solenoid which carries constant current i, the trajectory of electron shall be
JEE Main
Physics
Lenz law
A wooden block is initially at rest on a smooth surface. Now a horizontal force is applied on the block which increases linearly with time. The acceleration- time (a - t) graph for the block would be
JEE Main
Physics
Friction
On a given rough incline plane, a solid sphere and a hollow cylinder having the same radius are rolled one by one, with the same speed. Ratio of heights attained by solid sphere and hollow cylinder is
JEE Main
Physics
rotational motion
Position of particle located on x-axis changes with time (t) as x = 2.5t2.
Speed of the particle at t = 5 seconds is equal to?
JEE Main
Physics
Kinematics
Body accelerates from rest to 4 m/s, energy is E. If it accelerates from rest to 24, then energy is nE. Find n.
JEE Main
Physics
Kinetic Energy
The momentum of an electron revolving in
\(n ^{\text {th }}\)
orbit is given by : (Symbols have their usual meanings)
JEE Main
Physics
momentum
A car is moving with a uniform speed of
72
k
m
/
h
. After applying brakes it stops after traveling
100
m
distance. If its mass along with the passengers is
1000
k
g
, then the value of force due to the application of brakes will be in newton:
JEE Main
Physics
torque
The equation of motion of system is given by
m
x
¨
+
c
x
˙
+
k
x
=
0
. The damped vibration,
ω
d
can be written as:
JEE Main
Physics
Force and Laws of Motion
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