Question Answers

Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A radioactive source, in the form of a metallic sphere of radius 10^−2 m emits β−particles at the rate of 5×1010 particles per second. The source is electrically insulated. How long will it take for its potential to be raised by 2V, assuming that 40% of the emitted β−particles escape the source.

A radioactive source, in the form of a metallic sphere of radius 10^−2 m emits β−particles at the rate of 5×1010 particles per second. The source is electrically insulated. How long will it take for its potential to be raised by 2V, assuming that 40% of the emitted β−particles escape the source.

A positively charged particle starts at rest 25 cm from a second positively charged particle A radioactive source it has reached a velocity of 10(2–√)ms−1 . What is the maximum velocity (∈×10ms−1) that the first particle will reach? which is held stationary throughout the experiment. The first particle is released and accelerates directly away from the second particle. When the first particle has moved 25 cm