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1.
All components of the Electromagnetic Spectrum in vacuum have the same
2.
Infrared radiation is detected by
3.
A particles of mass 
and charge 
travelling with a velocity 
along the positive 
-axis enters a region in which a uniform electric field E and a uniform magnetic field of induction B are present. If 
and 
the direction of motion of the particles is
and charge travelling with a velocity along the positive -axis enters a region in which a uniform electric field E and a uniform magnetic field of induction B are present. If and the direction of motion of the particles is
4.
If a free electron is placed in the path of a plane electromagnetic wave, it will start moving along
5.
The atmosphere above the height of 80 km is called