MCQ
A positively charged pendulum is oscillating in a uniform electric field pointing upwards. Its time period as compared to that when it oscillates without electric field
- AIs less
- ✓Is more
- CRemains unchanged
- DStarts fluctuating
Effective $g$ decreases.
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$(i)$ Electrons $(ii)$ Protons $(iii)$ $H{e^{2 + }}$ $(iv)$ Neutrons
The emission at the instant can be
