Which of the following pairs does not have identical dimensions ?

Related Mcqs:

1. Which one of the following physical quantities does not have the dimensions of force per unit area ?

   A. Stress
   B. Strain
   C. Youngs modulus
   D. Pressure

2. When two identical traveling waves are superimposed, the velocity of the resultant wave__________________?

   A. decreases
   B. increases
   C. remains unchanged
   D. becomes zero

3. Two identical coaxial circular loops carry equal currents in the same direction. If the loops approach each other the current in______________?

   A. Each increase
   B. Each decrease
   C. Each remains the same
   D. One increases whereas that in the other decreases

4. The SI unit of force constant is identical with that of__________________?

   A. Force
   B. Pressure
   C. Surface tension
   D. Loudness

5. Two identical metal balls with charges + 2Q and – Q are separated by some distance, and exert a force F on each other. They are joined by a conducting wire, which is then removed. The force between them will now be_________?

   A. F
   B. F/2
   C. F/4
   D. F/8

   Submitted by: Tauseef Ali

6. What are the dimensions of stress ?

   A. MLT-2
   B. ML-2T-1
   C. ML-1T-2
   D. ML-T-1

7. The dimensions of the coefficient of viscosity are_____________?

   A. ML-1T-1
   B. M2L1T1
   C. ML1T-1
   D. M2L-1T-1

8. Which one of the following properties of light does not change with the nature of the medium ?

   A. velocity
   B. wavelength
   C. amplitude
   D. frequency

9. Which one does not work according to resonance ?

   A. T.V
   B. Radio
   C. Microwave oven
   D. Bulb

10. A bird sitting on a high tension electric wire does not get electrocuted because:

    A. Sit has high resistance
    B. the body is earthed
    C. it does not form a closed path for the flow of current
    D. its feet are good insulators

    Submitted by: Abid Hussain