Question

Incorrect statement for discharge tube experiment
(1) Colour of the light depends upon the nature of
gas filled inside the tube
(2) Nature of cathode rays depends upon the gas
filled in discharge tube
(3) Cathode rays when strike with heavy metal
produce X-rays which cannot be deflected by
electric and magnetic field
(4) Gas will be conducting at low pressure only​

Answer 1

Explanation:

3)Cathode rays when strike with heavy metal produce X-rays which cannot be deflected by electric and magnetic field

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