The distance between any two consecutive nodes or antinodes in a stationary wavelength (λ) is _________?

Related Mcqs:

1. The distance between any two consecutive crests or troughs is called____________________?

   A. frequency
   B. period
   C. Wave length
   D. phase difference

2. When two bodies move toward each other with constant speeds the distance between them decreases at the rate of 6m / sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are________________?

   A. 5m/s, 1m/s
   B. 3m/s, 3m/s
   C. 6m/s, 1m/s
   D. 4m/s, 2m/s

3. When one mirror of a Michelson Interferometer is moved a distance of 0.5 mm we observe 2000 fringes. What will be wavelength of light used ?

   A. 5000 nm
   B. 5000A
   C. 500m
   D. 2000um

4. A stationary wave is set up in the air column of a closed pipe. At the closes end of the pipe _____________________?

   A. always an node in formed
   B. always an antinode is formed
   C. neither node nor antinode is formed
   D. sometimes a node and sometimes an antinode is formed

5. When the source of sound moves away form a stationary listener then ______________ occurs?

   A. an apparent increase in frequency
   B. an apparent decrease in frequency
   C. an apparent decrease in wavelength
   D. no apparent change in frequency

6. The speed of stationary waves in a stretched string are independent of___________________?

   A. Number of loops
   B. Tension in the string
   C. Point where string is plucked
   D. both A and C

7. Fundamental frequency of stationary waves in open pipe is ______________ times the frequency in closed pipe?

   A. One
   B. Two
   C. Four time
   D. None of these

8. Wavelength of X-rays falling at glancing angle of 30? on a crystal with atmic spacing 2 x 10-10 for the fist order diffraction is________________?

   A. 4 x 10-10 m
   B. 2 x 10-10 m
   C. 0.02×10-10m
   D. 20×10-10m

9. Radiation with wavelength longer than red lights______________?

   A. ultraviolet rays
   B. X-rays
   C. infra red radiation
   D. visible radiation

10. The minimum wavelength of X-rays can further be reduced by _______________?

    A. Reducing the pressure or cooling the target
    B. Increasing the temperature of the filament.
    C. Using a target element of higher atomic number
    D. Increasing the potential difference between the cathode and the target