- The trace of 3\times3 matrix is 2. Two of its eigenvalues are 1 and 2. The third eigenvalue is
- -1
- 0
- 1
- 2
- A particle is moving in an inverse square force field. If the total energy of the particle is positive, the trajectory of the particle is
- circular
- elliptical
- parabolic
- hyperbolic
- In an electromagnetic field, which one of the following remains invariant under Lorentz transformation?
- \vec E\times\vec B
- E^2-c^2B^2
- B^2
- E^2
- A sphere of radius R has uniform volume charge density. The electric potential at a point r(r < R) is
- due to the charge inside a sphere of radius r only
- due to the entire charge of the sphere
- due to the charge of the spherical shell of inner and outer radii r and R, only
- independent of r
- A free particle is moving in +x direction with a linear momentum p. The wavefunction of the particle normalized in a length L is
- \frac{1}{\sqrt{L}}\sin{\frac{p}{\hbar}x}
- \frac{1}{\sqrt{L}}\cos{\frac{p}{\hbar}x}
- \frac{1}{\sqrt{L}}e^{-i\frac{p}{\hbar}x}
- \frac{1}{\sqrt{L}}e^{i\frac{p}{\hbar}x}
Enhance a problem solving ability in Physics for various competitive and qualifying examinations like GRE, GATE, CSIR JRF-NET, SET, UPSC etc.
Notice
Wednesday, 4 January 2017
Problem set 51
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