Pa(Pascal) is the unit for

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

---

View Answer

Light year is a unit of

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

---

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

If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same

A) velocity
B) momentum
C) acceleration
D) kinetic energy

---

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