Magnetism at the centre of a bar magnet is

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

---

View Answer

Pa(Pascal) is the unit for

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

---

View Answer

Radiocarbon is produced in the atmosphere as a result of

A) collision between fast neutrons and nitrogen nuclei present in the atmosphere
B) action of ultraviolet light from the sun on atmospheric oxygen
C) action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
D) lightning discharge in atmosphere

---

View Answer

Pick out the scalar quantity

A) force
B) pressure
C) velocity
D) acceleration

---

View Answer

Of the following properties of a wave, the one that is independent of the other is its

A) amplitude
B) velocity
C) wavelength
D) frequency

---

View Answer