Which one is the correct relation for fundamental frequency of open and closed pipe ?

Related Mcqs:

1. 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

2. 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

3. The most fundamental of all sciences which provides basic principles and fundamental laws to other branches of science is_________?

   A. biology
   B. physics
   C. information technology
   D. chemistry

4. A simple pendulum has a bob of mass m and its frequency is f. If we replaced the bob with a heavier one say of 2m then that will be its new frequency ?

   A. 1/4f
   B. 1/2f
   C. frequency lower than 20 Hz
   D. 2f

5. Which shows the correct relation between time of flight T and maximum height H ?

   A. H=gT2/8
   B. H=8T2/g
   C. H=8g/T2
   D. H=gT2

6. A field in which the work done in a moving a body along closed path is zero is called________________?

   A. electric field
   B. conservative field
   C. electromagnetic field
   D. gravitational field

7. The relation between horse power and watt is_________________?

   A. 1 hp = 546 watts
   B. 1 hp = 746 watts
   C. 1 hp = 1000 watts
   D. 1 hp = 946 watts

8. The relation between the escape velocity V esc and orbital speed Vo is given by________________?

   A. V esc = 1/2Vo
   B. V esc = -2 Vo
   C. V esc = Vo
   D. V esc = 2Vo

9. Which one is venturi relation ?

   A. P1 – P2 = 1/2 ρV22
   B. V2 = 2g (h1-h2)
   C. P = 1 /2ρV2 = ρgh = constant
   D. A1 V1 = A2 V2 = constant

10. The mass-energy relation is the outcome of____________?

    A. Quantum theory
    B. General theory of relativity
    C. Special theory of relativity
    D. None of these

    Submitted by: Fahad Mehsud