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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
6.
The atmosphere between the heights of 50 km and 80 km is called
7.
Which of the following is absorbed by the ozone layer?
8.
The small ozone layer on top of the atmosphere is crucial for human survival because it
9.
If 
are the electric permittivity and magnetic permeability of free space and 
are the corresponding quantities in the medium, the index of refraction of the medium in terms of above parameter is
are the electric permittivity and magnetic permeability of free space and are the corresponding quantities in the medium, the index of refraction of the medium in terms of above parameter is
10.
The wavelength of X-rays lies between