Physics · 2021 · 22 Jul · Shift 2
27 questions from this JEE Main paperGuest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
Physics · 2021 · 22 Jul · Shift 2
27 questions from this JEE Main paper
Vector Algebra2 questionsCurrent Electricity2 questionsAlternating Current2 questionsWork Power and Energy1 questionsRotational Motion2 questionsElectromagnetic Waves1 questionsGravitation1 questionsElectrostatics2 questionsAtoms and Nuclei1 questionsCenter of Mass2 questionsMagnetic Properties of Matter1 questionsGeometrical Optics2 questionsDual Nature of Radiation1 questionsHeat and Thermodynamics2 questionsSimple Harmonic Motion1 questionsWaves1 questionsElectronic Devices2 questionsUnits and Measurements1 questions
- Q47.What will be the projection of vector on vector ?Physics · Vector Algebra · MCQ
- Q48.A Copper (Cu) rod of length 25 cm and cross-sectional area 3 mm2 is joined with a similar Aluminium (Al) rod as shown in figure. Find the resistance of the combination between the ends A and B. (Take Resistivity of Copper = 1.7 10… Includes diagramPhysics · Current Electricity · MCQ
- Q49.In a circuit consisting of a capacitance and a generator with alternating emf Eg = Eg0 sin t, VC and IC are the voltage and current. Correct phasor diagram for such circuit is Includes diagramPhysics · Alternating Current · MCQ
- Q50.A porter lifts a heavy suitcase of mass 80 kg and at the destination lowers it down by a distance of 80 cm with a constant velocity. Calculate the work done by the porter in lowering the suitcase. (take g = 9.8 ms 2)Physics · Work Power and Energy · MCQ
- Q51.Consider a situation in which a ring, a solid cylinder and a solid sphere roll down on the same inclined plane without slipping. Assume that they start rolling from rest and having identical diameter. The correct statement for this…Physics · Rotational Motion · MCQ
- Q52.Intensity of sunlight is observed as 0.092 Wm 2 at a point in free space. What will be the peak value of magnetic field at the point? ()Physics · Electromagnetic Waves · MCQ
- Q53.A body is projected vertically upwards from the surface of earth with a velocity sufficient enough to carry it to infinity. The time taken by it to reach height h is s.Physics · Gravitation · MCQ
- Q54.An electric dipole is placed on x-axis in proximity to a line charge of linear charge density 3.0 10 6 C/m. Line charge is placed on z-axis and positive and negative charge of dipole is at a distance of 10 mm and 12 mm from…Physics · Electrostatics · MCQ
- Q55.A nucleus with mass number 184 initially at rest emits an -particle. If the Q value of the reaction is 5.5 MeV, calculate the kinetic energy of the -particle.Physics · Atoms and Nuclei · MCQ
- Q56.A bullet of '4 g' mass is fired from a gun of mass 4 kg. If the bullet moves with the muzzle speed of 50 ms 1, the impulse imparted to the gun and velocity of recoil of gun are :Physics · Center of Mass · MCQ
- Q57.Statement I : The ferromagnetic property depends on temperature. At high temperature, ferromagnet becomes paramagnet. Statement II : At high temperature, the domain wall area of a ferromagnetic substance increases. In the light of the…Physics · Magnetic Properties of Matter · MCQ
- Q58.Match List - I with List - II Choose the correct answer from the options given below Includes tablePhysics · Alternating Current · MCQ
- Q59.A ray of light passes from a denser medium to a rarer medium at an angle of incidence i. The reflected and refracted rays make an angle of 90 with each other. The angle of reflection and refraction are respectively r and r'. The… Includes diagramPhysics · Geometrical Optics · MCQ
- Q60.An electron of mass me and a proton of mass mp are accelerated through the same potential difference. The ratio of the de-Broglie wavelength associated with the electron to that with the proton isPhysics · Dual Nature of Radiation · MCQ
- Q61.What will be the average value of energy for a monoatomic gas in thermal equilibrium at temperature T?Physics · Heat and Thermodynamics · MCQ
- Q62.T0 is the time period of a simple pendulum at a place. if the length of the pendulum is reduced to times of its initial value, the modified time period is :Physics · Simple Harmonic Motion · MCQ
- Q63.The motion of a mass on a spring, with spring constant K is as shown in figure. The equation of motion is given by x(t) = A sin t + B cos t with = Suppose that at time t = 0, the position of… Includes diagramPhysics · Waves · MCQ
- Q64.Consider a situation in which reserve biased current of a particular P-N junction increases when it is exposed to a light of wavelength 621 nm. During this process, enhancement in carrier concentration takes place due to generation…Physics · Electronic Devices · MCQ
- Q65.A ray of light passing through a prism (=) suffers minimum deviation. It is found that the angle of incidence is double the angle of refraction within the prism. Then, the angle of prism is (in…Physics · Geometrical Optics · Numerical
- Q66.Three students S1, S2 and S3 perform an experiment for determining the acceleration due to gravity (g) using a simple pendulum. They use different lengths of pendulum and record time for different number of oscillations. The observations… Includes tablePhysics · Units and Measurements · Numerical
- Q67.Three particles P, Q and R are moving along the vectors , and respectively. They strike on a point…Physics · Vector Algebra · Numerical
- Q68.In a given circuit diagram, a 5 V zener diode along with a series resistance is connected across a 50 V power supply. The minimum value of the resistance required, if the maximum zener current is 90 mA will be … Includes diagramPhysics · Electronic Devices · Numerical
- Q69.The total charge enclosed in an incremental volume of 2 10 9 m3 located at the origin is nC, if electric flux density of its field is found as D = e x sin y e x cos y …Physics · Electrostatics · Numerical
- Q70.The position of the centre of mass of a uniform semi-circular wire of radius 'R' placed in x-y plane with its centre at the origin and the line joining its ends as x-axis is given by . Then, the…Physics · Center of Mass · Numerical
- Q71.In an electric circuit, a cell of certain emf provides a potential difference of 1.25 V across a load resistance of 5 . However, it provides a potential difference of 1 V across a load resistance of 2 . The emf of the cell…Physics · Current Electricity · Numerical
- Q72.The area of cross-section of a railway track is 0.01 m2. The temperature variation is 10 C. Coefficient of liner expansion of material of track is 10 5/ C. The energy stored per meter in the track is …Physics · Heat and Thermodynamics · Numerical
- Q73.The centre of a wheel rolling on a plane surface moves with a speed v0. A particle on the rim of the wheel at the same level as the centre will be moving at a speed . Then the value of x is .Physics · Rotational Motion · Numerical