- ANeon
- BHydrogen
- ✓Helium
- DDeuterium
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| LIST$-I$ | LIST$-II$ |
| $(A)$ Surface tension | $(I)$ $Kg m ^{-1} s ^{-1}$ |
| $(B)$ Pressure | $(II)$ $Kg ms^{-1 }$ |
| $(C)$ Viscosity | $(III)$ $Kg m ^{-1} s ^{-2}$ |
| $(D)$ Impulse | $(IV)$ $Kg s ^{-2}$ |
Choose the correct answer from the options given below :
$A$. In a plane electromagnetic wave electric field and magnetic field must be perpendicular to each other and direction of propagation of wave should be along electric field or magnetic field.
$B.$ The energy in electromagnetic wave is divided equally between electric and magnetic fields.
$C.$ Both electric field and magnetic field are parallel to each other and perpendicular to the direction of propagation of wave.
$D.$ The electric field, magnetic field and direction of propagation of wave must be perpendicular to each other.
$E.$ The ratio of amplitude of magnetic field to the amplitude of electric field is equal to speed of light.
Choose the most appropriate answer from the options given below:
