Assertion Cathode rays produce fluorescence in glass and colour of glow depends on nature of glass. Reason Cathode rays excite glass electrons and they on de-excitation emits radiation in visible region.

Question

Assertion Cathode rays produce fluorescence in glass and colour of glow depends on nature of glass. Reason Cathode rays excite glass electrons and they on de-excitation emits radiation in visible region. (A) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion (B) Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion (C) Assertion is correct but Reason is incorrect (D) Assertion is incorrect but Reason is correct

Tardigrade Admin · Accepted Answer

Cathode ray particles when strike the electrons of glass atom, the electrons of glass atom are excited and move to higher energy levels. On de-excitation, they fall to their ground state and release energy. Lambda s energy levels are characteristics of glass, glow depends on glass.

Q. Assertion Cathode rays produce fluorescence in glass and colour of glow depends on nature of glass.
Reason Cathode rays excite glass electrons and they on de-excitation emits radiation in visible region.

Both Assertion and Reason are correct and Reason is the correct explanation of Assertion

Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion

Assertion is correct but Reason is incorrect

Assertion is incorrect but Reason is correct

Cathode ray particles when strike the electrons of glass atom, the electrons of glass atom are excited and move to higher energy levels. On de-excitation, they fall to their ground state and release energy. $Λ$ s energy levels are characteristics of glass, glow depends on glass.

Q. Assertion Cathode rays produce fluorescence in glass and colour of glow depends on nature of glass. Reason Cathode rays excite glass electrons and they on de-excitation emits radiation in visible region.