Physics questions
20027 published questions with worked solutions.
- An object viewed from a near point distance of 25 cm, using a microscopic lens with magnification '6', gives an unresolved image....
- The frequency of a car horn encountered a change from 400 Hz to 500 Hz. When the car approaches a vertical wall. If the speed of...
- A carrier wave VC(t) = 160 sin(2 10^6t) volts is made to vary between V_ max = 200 V and V_ min = 120 V by a message signal...Not in JEE or NEET syllabus
- 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...
- Statement I : The ferromagnetic property depends on temperature. At high temperature, ferromagnet becomes paramagnet. Statement...Not in JEE Advanced syllabus
- A bullet of '4g' mass is fired from a gun of mass 4 kg. If the bullet moves with the muzzle speed of 50 ms^ -1 , the impulse...
- Consider a situation in which a ring, a solid cylinder and a solid sphere roll down on the same inclined plane without slipping....
- Consider a situation in which reverse biased current of a particular P-N junction increases when it is exposed to a light of...Not in JEE Advanced syllabus
- 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...
- An electron of mass m_e and a proton of mass m_p are accelerated through the same potential difference. The ratio of the...
- What should be the height of transmitting antenna and the population covered if the television telecast is to cover a radius of...Not in JEE or NEET syllabus
- What will be the average value of energy for a monoatomic gas in thermal equilibrium at temperature T ?
- at 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...
- A body is projected vertically upwards from the surface of earth with a velocity sufficient enough to carry it to infinity. The...
- 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...
- In an electric circuit, a cell of certain emf provides a potential difference of 1.25 V across a load resistance of 5 . However,...
- The total charge enclosed in an incremental volume of 2 10^ -9 m^3 located at the origin is _______nC, if electric flux density...
- Three particles P, Q and R are moving along the vectors A = i + j , B = j + k and C =- i + j respectively. They strike on a point...
- The centre of a wheel rolling on a plane surface moves with a speed v. A particle on the rim of the wheel at the same level as...
- A ray of light passing through a prism ( = 3)suffers minimum deviation. It is found that the angle of incidence is double the...