Question

What is the dimensional formula of frequency?
1. M⁰L⁰T⁰
2. M⁰L⁰T^-1
3. M¹L¹T^-1
4. M⁰L⁰T¹

Answer 1

Correct Answer - Option 2 : M⁰L⁰T^-1

Option 2 is correct, i.e. M0L0T-1.

• Frequency:
  • It is defined as the cycle per second.
  • Frequency = 1/Time (1/s)
  • Its S.I unit is Hertz (Hz) is named for Heinrich Rudolf Hertz.
  • Its dimension is M0L0T-1.
• Note:
• Angular Frequency:
• The SI unit of angular frequency in rad/sec.

It refers to the angular displacement of an object per unit time and is given by:

ω=ν×2π  where ν is the frequency.