Which equation is not dimensionally correct ?

Related Mcqs:

1. Which one is the dimensionally correct equation ?

   A. f=vt
   B. S=Vit+1/2at2
   C. V=St
   D. V=f/t

2. An alternating current is represented by the equation I = I∫sinπt which of the following equation represents an alternating current of frequency and amplitude twice that of the above current ?

   A. I = 2I∫Sin(πt/2)
   B. I = 2I∫Sin(2πt)
   C. I = 2ISinπt
   D. I = I∫sin(2πt)

3. According to equation of continuity A1V1 = A2V2 = constant. The constant is equal to_______________?

   A. Flow rate
   B. Volume of fluid
   C. Mass of fluid
   D. The density of the fluid

4. The equation of continuity is obtained by applying in the law of conservation of_____________?

   A. Mass
   B. Energy
   C. Momentum
   D. All

5. Bernoulli’s equation is obtained by applying the law of conservation of ________________?

   A. Mass
   B. Energy
   C. Momentum
   D. Fluid

6. Bernoulli’s equation is applicable for_________________?

   A. Laminar flow
   B. Turbulent flow
   C. Both laminar and turbulent flow
   D. None of these

7. Einstein’s photoelectric equation is given by_______________?

   A. 1/2 mvmax2=hf+Φ
   B. 1/2 mvmax2-hf = Φ
   C. 1/2 mvmax2=hf-Φ
   D. All of above are correct

8. The equation θ = 1.22 λ/D was devised by_______________?

   A. Newton
   B. Einstein
   C. Raleigh
   D. Planks

9. The synopsis of Einstein’s equation E = mc² is that

   A. The faster you move, the lighter you get
   B. The faster you move, the heavier you get
   C. The slower you move, the heavier you get
   D. None of the above

   Submitted by: Rizwan Ayub Saadi

10. The unit of force is _________ and its symbol is ______________ Which is the correct pair ?

    A. Newton, n
    B. Newton, N
    C. newton, n
    D. newton, N