A student measures the rate at which ionising radiation is emitted from a radioactive substance.
He places a detector at different distances from the radioactive source.
The table shows how the count rate from the source varies with distance d.
Which type of ionising radiation is being emitted by the substance?

α-particles
2 )
β-particles
3 )
γ-rays
4 )
X-rays
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!