Which of the following is not the property of a cathode ray
Which of the following is not the property of a cathode ray
- [AIPMT 2002]
- A
It casts shadow
- B
It produces heating effect
- C
It produces flurosence
- D
It does not deflect in electric field
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A cathode emits $1.8 \times {10^{14}}$ electrons per second, when heated. When $ 400\;V$ is applied to anode all the emitted electrons reach the anode. The charge on electron is $1.6 \times {10^{ - 19}}\;C$. The maximum anode current is ............ $\mu A$
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${O^{ + + }},\;{C^ + },\;H{e^{ + + }}$ and ${H^ + }$ ions are projected on the photographic plate with same velocity in a mass spectrograph. Which one will strike farthest
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Positive rays consists of
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