1. . The charge on an α–particle is:
(A) +e
(B) –e
(C) +2e
(D) +3e
2. . An alpha particle is composed of:
(A) Two protons and two neutrons
(B) Two protons and four neutrons
(C) Two protons and one neutron
(D) Four protons and two neutrons
3. . One of the following is non-ionizing radiation:
(A) α-Particles
(B) β-Particles
(C) γ-Rays
(D) Light rays
4. . The path of an α–particle is:
(A) Zig–zag
(B) Circular
(C) Straight
(D) Elliptical
5. . Gamma rays are electromagnetic waves like:
(A) X–rays
(B) Light waves
(C) Microwaves
(D) All of these
6. . Which one of the following radiations is extremely penetrating:
(A) Light
(B) α–rays
(C) γ-Rays
(D) β-Rays
7. . Which of the following is a better shield against γ–rays?
(A) Air
(B) Lead
(C) Aluminum
(D) Paper
8. . The β particle has a charge:
(A) Negative
(B) Double Positive
(C) Positive
(D) Neutral