Physics questions
20027 published questions with worked solutions.
- In an experiment the values of two spring constants were measured as k_1 = (10 0.2) N/m and k_2 = (20 0.3) N/m. If these springs...
- Consider a modified Bernoulli equation. (P + A Bt^2 ) + g(h + Bt) + 1 2 V^2 = constant If t has the dimension of time then the...
- The electric field a plane electromagnetic wave is given by : E_y = 69 [0.6 10^3 x - 1.8 10^ 11 t] V/m. The expression for...
- In a double slit experiment the distance between the slits is 0.1 cm and the screen is placed at 50 cm from the slits plane. When...
- If an alpha particle with energy 7.7 MeV is bombarded on a thin gold foil, the closest distance from nucleus it can reach is...
- An aluminium and steel rods having same lengths and cross-sections are joined to make total length of 120 cm at 30°C. The...
- Two strings (A, B) having linear densities _A = 2 10^ -4 kg/m and _B = 4 10^ -4 kg/m and lengths L_A = 2.5 m and L_B = 1.5 m...
- Initially a satellite of 100 kg is in a circular orbit of radius 1.5R_E. This satellite can be moved to a circular orbit of...
- A point charge of 10^ -8 C is placed at origin. The work done in moving a point charge 2 C from point A(4,4,2) m to B(2,2,1) m is...
- 10 mole of oxygen is heated at constant volume from 30°C to 40°C. The change in the internal energy of the gas is _____ cal. (The...
- In a microscope the objective is having focal length f_0 = 2 cm and eye-piece is having focal length f_e = 4 cm. The tube length...
- Consider two identical metallic spheres of radius R each having charge Q and mass m. Their centers have an initial separation of...
- A capacitor C is first charged fully with potential difference of V_0 and disconnected from the battery. The charged capacitor is...
- The r.m.s speed of oxygen molecules at 47°C is equal to that of the hydrogen molecules kept at _____ °C. (Mass of oxygen...
- The kinetic energy of a simple harmonic oscillator is oscillating with angular frequency of 176 rad/s. The frequency of this...
- Given below are two statements: Statement I: In a Young's double slit experiment, the angular separation of fringes will increase...
- A battery with EMF E and internal resistance r is connected across a resistance R. The power consumption in R will be maximum...
- Keeping the significant figures in view, the sum of the physical quantities 52.01 m, 153.2 m and 0.123 m is:
- A spherical body of radius r and density falls freely through a viscous liquid having density and viscosity and attains a...
- Surface tension of two liquids (having same densities), T_1 and T_2, are measured using capillary rise method utilizing two tubes...