Physics questions
20027 published questions with worked solutions.
- The area of cross-section of a railway track is 0.01 m^2. The temperature variation is 10°C. Coefficient of linear expansion of...
- In 5 minutes, a body cools from 75°C to 65°C at room temperature of 25°C. The temperature of body at the end of next 5 minutes is...
- When a particle executes SHM, the nature of graphical representation of velocity as a function of displacement is :
- On the basis of kinetic theory of gases, the gas exerts pressure because its molecules :
- A soft ferromagnetic material is placed in an external magnetic field. The magnetic domains :Not in JEE Advanced syllabus
- The period of oscillation of a simple pendulum is T = 2 L g . Measured value of 'L' is 1.0 m from meter scale having a minimum...
- Given below are two statements : Statement I : PN junction diodes can be used to function as transistor, simply by connecting two...Not in JEE Advanced syllabus
- An X-ray tube is operated at 1.24 million volt. The shortest wavelength of the produced photon will be :
- Which of the following equations represents a travelling wave ?
- If the source of light used in a Young's double slit experiment is changed from red to violet :
- Zener breakdown occurs in a p-n junction having p and n both :Not in JEE Advanced syllabus
- Match List-I with List-II : List-I: (a) Source of microwave frequency (b) Source of infrared frequency (c) Source of Gamma Rays...
- A particle is projected with velocity v_0 along x-axis. A damping force is acting on the particle which is proportional to the...
- A body weighs 49 N on a spring balance at the north pole. What will be its weight recorded on the same weighing machine, if it is...
- A uniform metallic wire is elongated by 0.04 m when subjected to a linear force F. The elongation, if its length and diameter is...
- A cylindrical wire of radius 0.5 mm and conductivity 5 10^7 S/m is subjected to an electric field of 10 mV/m. The expected value...
- A uniform thin bar of mass 6 kg and length 2.4 meter is bent to make an equilateral hexagon. The moment of inertia about an axis...
- Two solids A and B of mass 1 kg and 2 kg respectively are moving with equal linear momentum. The ratio of their kinetic energies...
- The root mean square speed of molecules of a given mass of a gas at 27°C and 1 atmosphere pressure is 200 ms^ -1 . The root mean...
- A series LCR circuit is designed to resonate at an angular frequency _0=10^5 rad/s. The circuit draws 16 W power from 120 V...