Options:
- A. Mass is not conserved
- B. Energy is not conserved
- C. Momentum is not conserved
- D. The chargee is not conserved
View Answer
C. Momentum is not conserved
Physics
In any measurement the significant figures are______________?
Options:
- A. All accurately known and all doubtful digits
- B. Only accurately known digits
- C. Only doubtful digits
- D. All accurately known digits and the first doubtful digit
View Answer
D. All accurately known digits and the first doubtful digit
Unit of G is ______________?
Options:
- A. Nm2Kg2
- B. Nm2Kg
- C. Nm2Kg-2
- D. None
View Answer
B. Nm2Kg
The critical speed of an artificial satellite is_______________?
Options:
- A. 8 Kms-1
- B. 8.1 Kms-1
- C. 7.9 Kms-1
- D. 8 ms-1
View Answer
C. 7.9 Kms-1
If a car moves with a uniform speed of 2 ms-1 in a circle of radius 0.4. Its angular speed is______________?
Options:
- A. 4 rad. S-1
- B. 5 rad. S-1
- C. 1.6 rad. S-1
- D. 2.8 ms-1
View Answer
B. 5 rad. S-1
A satellite moving around the earth constitutes______________?
Options:
- A. An inertial frame of reference
- B. Non-inertial frame
- C. Neither inertial nor non-inertial
- D. Both inertial and non-inertial
View Answer
B. Non-inertial frame
According to equation of continuity A1V1 = A2V2 = constant. The constant is equal to_______________?
Options:
- A. Flow rate
- B. Volume of fluid
- C. Mass of fluid
- D. The density of the fluid
View Answer
A. Flow rate
The effect of the decrease in pressure with the increase of the speed of the fluid in a horizontal pipe is known as______________?
Options:
- A. Bernoulli effect
- B. Torricelli effect
- C. Venturi effect
- D. Stokes effect
View Answer
C. Venturi effect
The acceleration of a projection on the diameter for a particle moving along a circle is_______________?
Options:
- A. w2x
- B. wx2
- C. w2x
- D. wx2
View Answer
C. w2x
Which one does not work according to resonance ?
Options:
- A. T.V
- B. Radio
- C. Microwave oven
- D. Bulb
View Answer
D. Bulb