Radiation Types and Properties in Radioactive Substances

The video tutorial explains the three types of radiation: alpha, beta, and gamma. It describes how these rays are emitted from radioactive substances and their behavior in an electrostatic field. Alpha rays are positively charged, heavier, and have low penetrating power. Beta rays are negatively charged, lighter, and have moderate penetrating power. Gamma rays are electromagnetic, have no charge, and possess high penetrating power. The tutorial also covers the ionizing power of each type of radiation.

What are the substances called that emit spontaneous radiations?

• Ionizing substances

• Electromagnetic substances

• Radioactive substances

• Deflective substances

Which type of radiation is deflected towards the negatively charged plate in an electrostatic field?

• Gamma rays

• Beta rays

• Neutron rays

• Alpha rays

Which type of radiation can be stopped by a simple sheet of paper?

• X-rays

• Beta rays

• Gamma rays

• Alpha rays

What is the barrier that can stop beta rays?

• Glass sheet

• Wooden plank

• Lead sheet

• Aluminium foil

What is the net charge of alpha particles?

• Plus 1

• Zero

• Minus 1

• Plus 2

Which type of radiation is not made up of particles?

• Alpha rays

• Beta rays

• Gamma rays

• Delta rays