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Question

A nuclide 'A' undergoes αdecay and another nuclide B undergoes βdecay. Then

A
all the αparticles emitted by A will have almost the same speed
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B
the αparticles emitted by B will have widely different speeds
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C
all the βparticles emitted by B will have almost the same speed
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D
the βparticles emitted by B may have widely different speeds
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Solution

The correct options are
A all the αparticles emitted by A will have almost the same speed
D the βparticles emitted by B may have widely different speeds
β-particles are decelerated by electromagnetic interactions and may give off Bremsstrahlung X-rays.
Hence, they have wide range of speeds.
α- particles move on with almost same speed.

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