Pa(Pascal) is the unit for

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

---

View Answer

Mirage is due to

A) unequal heating of different parts of the atmosphere
B) magnetic disturbances in the atmosphere
C) depletion of ozone layer in the atmosphere
D) equal heating of different parts of the atmosphere

---

View Answer

Light from the Sun reaches us in nearly

A) 2 minutes
B) 4 minutes
C) 8 minutes
D) 16 minutes

---

View Answer

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

Nuclear sizes are expressed in a unit named.

A) Fermi
B) angstrom
C) newton
D) tesla

---

View Answer