Nmdcat Practice Paper from PMDC Syllabus | mosaicbro.com

Nmdcat Practice Paper from PMDC Syllabus

7 of 197 questions (Page 24 of 29)

Filter by Category

162 The charge on gamma radiation is:
Correct Answer: C
Explanation: Gamma radiation consists of photons, which are neutral and carry no charge.
163 When the alpha emission is 1.02Mev then which of the following effect will occur:
Correct Answer: A
Explanation: Pair production occurs when the energy of the photon is at least 1.02 MeV, the rest mass energy of an electron-positron pair.
164 The path of beta particles in matter is:
Correct Answer: D
Explanation: Beta particles can be scattered, stopped, or travel straight depending on the medium and their energy.
165 A radioactive emission in which the mass number of particle remain same is called:
Correct Answer: B
Explanation: Beta decay involves the emission of beta particles (electrons or positrons), which do not change the mass number of the nucleus.
166 In beta negative emission:
Correct Answer: A
Explanation: In beta negative decay, a neutron is converted into a proton, increasing the atomic number by 1.
167 What percentage recovery of injury to somatic cells can be expected within 24 hour of radiation exposure?
Correct Answer: C
Explanation: Somatic cells can recover approximately 50% of radiation-induced damage within 24 hours.
168 Radiotherapy is a technique where cancer is cured by:
Correct Answer: C
Explanation: Radiotherapy uses ionizing radiation to target and destroy cancerous cells.
MCQs Bank by mosaicbro.com