Author Question: Scientists were led to postulate the existence of the neutrino in order to A) maintain the ... (Read 161 times)

leilurhhh · **on:** Jul 27, 2018

Scientists were led to postulate the existence of the neutrino in order to

A) maintain the conservation of energy and of momentum in beta decay.
B) provide a mechanism for quark production.
C) account for alpha decay.
D) explain the intense radiation emitted by quasars.

Question 2

A becquerel (Bq) is

A) a dosage of 2.58 10-4 C/kg.
B) 3.70 1010 decays/s in radium.
C) the SI unit of radioactivity (= 1 decay/s).
D) the SI unit of absorbed dose = 1 J/kg = 100 rad.
E) 10-2 J/kg.