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

Light year is a unit of

A) time
B) distance
C) light
D) intensity of light

---

View Answer

Rectifiers are used to convert

A) Direct current to Alternating current
B) Alternating current to Direct current
C) high voltage to low voltage
D) low voltage to high voltage

---

View Answer

It is more difficult to walk on a sandy road than on a concrete road because

A) sand is soft and concreter is hard
B) the friction between sand and feet is less than that between concrete and feet
C) the friction between sand and feet is more than that between concrete and feet
D) the sand is grainy but concrete is smooth

---

View Answer

Let a thin capillary tube be replaced with another tube of insufficient length then, we find water

A) will overflow
B) will not rise
C) depressed
D) change its meniscus

---

View Answer