The magnitude of electric field intensity that balances the weight of an \alpha-particle is [Take, mass of proton, m_{p}=1.67 \times 10^{-27} {kg}, g=10 {m} \/ {s}^{2} and e=1.6 \times 10^{-19} {C} ]

Correct Answer is : 2.1×10−7N∕C

MHT CET 2021 Physics Solved Paper

Question : 92 of 100

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The magnitude of electric field intensity that balances the weight of an α-particle is
[Take, mass of proton, mp=1.67×10−27kg, g=10m∕s2 and e=1.6×10−19C ]

3.3×10−6N∕C
4.2×10−8N∕C
2.5×10−9N∕C
2.1×10−7N∕C

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