Physics Quiz

Which of the following indicates the correct set of combination in radio waves.

• Longer wavelength-less frequency

• Shorter wavelength-higher frequency

• Longer wavelength-high frequency

• Shorter wavelength-less frequency

At the critical temperature, the resistance of a super conductor.

In superconductivity the conductivity of a material becomes.

• Finite

• Infinite

• Zero

• None of the above

Which of the following wave is not employed in case of remote sensing.

• Thermal IR

• X-ray

• Radio waves

• Visible ray

The charge build up in the capacitor is due to which quantity.

• Direct Current

• Displacement current

• Conduction current

• Convection current

Type-II superconductors are generally.

• Both soft and hard superconductors

• Soft superconductors

• None of the above

• Hard superconductors

Type-I superconductors exhibits.

• Zero critical magnetic field

• None of the above

• Single critical magnetic field

• Two critical magnetic field

Magnetic field can be produced by.

• Conduction current

• It is produced naturally

• Both conduction and displacement Current

• Displacement Current

Susceptibility of diamagnetic materials is.

• Little less than unity and negative

• Very low and negativity

• Very high and positive

• Little greater than unity and positive

EM waves varies from_________to_________.

• Meters to nanometers

• Centimeters to nano-meters

• Meters to micro-meters

• Nano to micro-meters