The absorption of ink by blotting paper involves

A) viscosity of ink
B) capillary action phenomenon
C) diffusion of ink through the blotting
D) siphon action

---

View Answer

out of the following, which is not emitted by radioactive substance?

A) Electrons
B) Electromagnetic radiations
C) Alpha particles
D) Neutrons

---

View Answer

Pa(Pascal) is the unit for

A) thrust
B) pressure
C) frequency
D) conductivity

---

View Answer

Magnetism at the centre of a bar magnet is

A) minimum
B) maximum
C) zero
D) minimum or maximum

---

View Answer

Metals are good conductors of electricity because

A) they contain free electrons
B) the atoms are lightly packed
C) they have high melting point
D) All of the above

---

View Answer