download Mastguru Android App

Question Detail

What is the relation between wavelength, frequency and velocity ?

  • velocity of wave = frequency * wavelength
  • velocity of wave = frequency/wavelength
  • velocity of wave = wavelength/frequency
  • None of above

Answer: Option A

Similar Questions :

1. What is unit of Electrical Capacity ?

  • henry
  • farad
  • volt
  • ohm

Answer: Option B

Explanation:

henry is unit of Magnetic Induction,

volt is unit of Potential Difference,

ohm is unit of Electric Resistance.

2. All planets move around the sun in elliptical orbits, with the sun being at rest at one focus of the orbit.

  • True
  • False

Answer: Option A

3. Which instrument is used to determine the intensity of colours ?

  • Cathetometer
  • Chronometer
  • Colorimeter
  • Commutator

Answer: Option C

Explanation:

Cathetometer - is used to determine heights,

Chronometer - is used to longitude of a vessel at sea,

Commutator - is used to convert AC to DC.

4. Which instrument is used to measure pressure of gases ?

  • Manometer
  • Machmeter
  • Magnetometer
  • Micrometer

Answer: Option A

Explanation:

Machmeter - is used to determine the speed of an aircraft in terms of speed of sound,

Magnetometer - is used to compare magnetic movements and fields,

Micrometer - is used to convert sound waves into electrical vibrations.

5. What is the relation between wavelength, frequency and velocity ?

  • velocity of wave = frequency * wavelength
  • velocity of wave = frequency/wavelength
  • velocity of wave = wavelength/frequency
  • None of above

Answer: Option A

Read more from - Physics Questions Answers
Post a comment

    Mastguru Youtube Channel

    Videos @mastguru

    Free useful videos - Subscribe Mastguru
     

    Get Free Current Affairs and Govt Jobs Alerts in your mailbox

    To Appreciate Our Effort, Please Like Us

    Quantitative Aptitude
    English Aptitude
    Reasoning Aptitude
    Computer Awareness
    General Knowledge
    Current Affairs
    IT Officer Aptitude
    Programming Aptitude
    Latest Govt Jobs