JEE Main 2003 — Nuclear Physics Questions with Solutions

When a U²³⁸ nucleus originally at rest, decays by emitting an alpha particle having a speed ' u ', the recoil speed of…

Which of the following radiations has the least wavelength?

A radioactive sample at any instant has its disintegration rate 5000 disintegrations per minute. After 5 ~min- utes, th…

Which of the following cannot be emitted by radioactive substances during their decay?

A nucleus with Z=92 emits the following in a sequence: α, β⁻, β⁻ α, α, α, α, α, β⁻, β⁻, α, β⁺, β⁺, α. Then Z of the res…