A proton and an α−particle are accelerated through the same potential. The ratio of their velocities is
1:4
1:2
1:1
√2:1
A
1:1
B
√2:1
C
1:2
D
1:4
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Solution
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Charge on proton =α Charge on α-particle = 2α Mass of proton =β Mass of α-particle =4β
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