Physics questions
20027 published questions with worked solutions.
- Given below are two statements: Statement I: If E be the total energy of a satellite moving around the earth, then its potential...
- An aluminium rod with Young's modulus Y = 7.0×10^ 10 N/m^2 undergoes elastic strain of 0.04%. The energy per unit volume stored...
- Two forces having magnitude A and A 2 are perpendicular to each other. The magnitude of their resultant is:
- Certain galvanometers have a fixed core made of non magnetic metallic material. The function of this metallic material is
- The weight of a body on the earth is 400 N. Then weight of the body when taken to a depth half of the radius of the earth will be...
- The moment of inertia of a semicircular ring about an axis, passing through the center and perpendicular to the plane of ring, is...
- An air bubble of diameter 6 mm rises steadily through a solution of density 1750 kg/m^3 at the rate of 0.35 cm/s. The...
- An oscillating LC circuit consists of a 75 mH inductor and a 1.2 capacitor. If the maximum charge to the capacitor is 2.7 . The...
- An organ pipe 40 cm long is open at both ends. The speed of sound in air is 360 ms^ -1 . The frequency of the second harmonic is...
- An electric dipole of dipole moment is 6.0 10^ -6 Cm placed in a uniform electric field of 1.5 10^3N C^ -1 in such a way that...
- The magnetic intensity at the center of a long current carrying solenoid is found to be 1.6 10^3Am^ -1 . If the number of turns...
- The momentum of a body is increased by 50%. The percentage increase in the kinetic energy of the body is________%.
- A nucleus with mass number 242 and binding energy per nucleon as 7.6 MeV breaks into two fragment each with mass number 121. If...
- A current of 2 A flows through a wire of cross sectional area 25.0 mm^2. The number of free electrons in a cubic meter are 2.0...
- The half life of a radioactive substance is T. The time taken, for disintegrating 7 8 th part of its original mass will be:
- A gas is compressed adiabatically, which one of the following statement is NOT true?
- The amplitude of magnetic field in an electromagnetic wave propagating along y-axis is 6.0 10^ -7 T. The maximum value of...
- Given below are two statements: Statement I : Rotation of the earth shows effect on the value of acceleration due to gravity (g)....
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : An electric...
- A person travels x distance with velocity v_1 and then x distance with velocity v_2 in the same direction. The average velocity...