Physics questions
20027 published questions with worked solutions.
- When both jaws of vernier callipers touch each other, zero mark of the vernier scale is right to zero mark of main scale, 4^ th...
- The magnetic field at the centre of a current carrying circular loop of radius R is 16 T. The magnetic field at a distance x= 3 R...
- The displacement of a particle, executing simple harmonic motion with time period T, is expressed as x(t) = A t, where A is the...
- The ratio of de Broglie wavelength of a deutron with kinetic energy E to that of an alpha particle with kinetic energy 2E, is...
- A solid sphere of radius 10 cm is rotating about an axis which is at a distance 15 cm from its centre. The radius of gyration...
- A convex lens of refractive index 1.5 and focal length f=18cm is immersed in water. The difference in focal lengths of the given...
- A nucleus has mass number and radius R_ . Another nucleus has mass number and radius R_ . If = 8 then R_ /R_ is :
- A plane electromagnetic wave is moving in free space with velocity c = 3 10^8 m/s and its electric field is given as E =54 (kz-...
- The mean free path of a molecule of diameter 5 10^ -10 m at the temperature 41°C and pressure 1.38 10^5 Pa, is given as ____ m....
- In an experiment, a set of reading are obtained –1.24 mm, 1.25 mm, 1.23 mm, 1.21 mm. The expected least count of the instrument...
- A particle starts moving from time t = 0 and its coordinate is given as x(t) = 4t³– 3t.. A. The particle returns to its original...
- The speed of a longitudinal wave in a metallic bar is 400 m/s. If the density and Young's modulus of the bar material are...
- Identify the correct statements : A. Effective capacitance of a series combination of capacitors is always smaller than the...
- When the position vector r =x i +y j +z k changes sign as - r , which one of the following vector will not flip under sign change...
- Which one of the following is not a measurable quantity?
- A long cylindrical conductor with large cross section carries an electric current distributed uniformly over its cross-section....
- Identify the correct statements : A. Electrostatic field lines form closed loops. B. The electric field lines point radially...
- The time period of a simple harmonic oscillator is T=2 k m . The measured value of mass (m) of the object is 10 g with an...
- Two tuning forks A and B are sounded together giving rise to 8 beats in 2 s. When fork A is loaded with wax, the beat frequency...
- An inductor stores 16 J of magnetic field energy and dissipates 32 W of thermal energy due to its resistance when an a.c. current...