31. Unit hertz is the measurement of
(a) Potential difference
(b) Electricity
(c) Pitch
(d) Frequency
32. What is measured by the unit Joule?
(a) Work
(b) Energy
(c) Quantity of heat
(d) All of them
33. Which of the following is the unit for measurement of power?
(a) Watt (W)
(b) Volts (V)
(c) Joule (J)
(d) Kelvin (K)
34. Temperature is measured by
(a) Watt
(b) Specific heat
(c) Degree Celsius
(d) None of these
35. The unit that is used to measure the electric resistance is
(a) Kelvin
(b) Ohm
(c) Coulomb
(d) Watt
36. Radiation activity is measured by
(a) Coulomb
(b) Ohm
(c) Becquerel (Bq)
(d) All of these