Question : Which of the following is the correct statement?

Option 1: Joule is the unit of work

Option 2: The unit of energy is the watt.

Option 3: Joule/ second is also a unit of energy.

Option 4: The unit of power is joule/newton.

Question : Hertz is a unit for measuring.

Option 1: Intensity of waves

Option 2: Frequency of waves

Option 3: Wavelength

Option 4: Clarity of waves

Question : Which of the following is used as the primary memory of a computer?

Option 1: Optical storage device

Option 2: Magnetic storage device

Option 3: RAM

Option 4: Magnetic-Optical storage device

Question : Which of the following is the unit of perceived loudness of sound?

Option 1: Decibel

Option 2: Sone

Option 3: Hertz

Option 4: Phon

Question : Which of the following is the unit of Astronomical Distance?

Option 1: metre/sec

Option 2: sec

Option 3: para/sec

Option 4: parsec