Question
Electromagnetic waves are transverse in nature is evident by
|
(a) Polarization |
(b) Interference |
(c) Reflection |
(d) Diffraction |
✓
Answer
(a) Polarization
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
If n, e, τ and m respectively represent the density, charge relaxation time and mass of the electron, then the resistance of a wire of length l and area of cross-section A will be
|
(a) |
(b) |
(c) |
(d) |
In meter bridge or Wheatstone bridge for measurement of resistance, the known and the unknown resistance are interchanged. The error so removed is:
A transistor is used in common emitter mode as an amplifier. Then
|
(a) The base-emitter junction is forward biased |
|
(b) The base-emitter junction is reverse biased |
|
(c) The input signal is connected in series with the voltage applied to the base-emitter junction |
|
(d) a, c |
If the capacitors having capacitance C1 and C2 are connected in parallel then their effective capacitance is given by:
Out of the following, which colour's wavelength is more than the wavelength of yellow colour?
When a current of 1 ampere is passed through a conductor whose ends are maintained at temperature difference of 1 ℃, the amount of heat evolved or absorbed is called
|
(a) Peltier coefficient |
(b) Thomson coefficient |
|
(c) Thermoelectic power |
(d) Thermo e.m.f. |
The radius of curvature of the path of the charged particle in a uniform magnetic field is directly proportional to
|
(a) The charge on the particle |
(b) The momentum of the particle |
|
(c) The energy of the particle |
(d) The intensity of the field |
A glass slab is placed in the path of beam of convergent light. The point of convergence of light:
A crystal diode is a
|
(a) Non-linear device |
(b) Amplifying device |
(c) Linear device |
(d) Fluctuating device |
The energy band gap is maximum in
|
(a) Metals |
(b) Superconductors |
(c) Insulators |
(d) Semiconductors |