Options:
- A. K.E hoop = K.E disc
- B. K.E hoop = 2K.E disc
- C. K.E hoop = 1/2K.E disc
- D. K.E hoop = 4K.E disc
View Answer
B. K.E hoop = 2K.E disc
Physics
In case of planets the necessary acceleration is provided by______________?
Options:
- A. Gravitational force
- B. Frictional force
- C. Coulomb force
- D. Centripetal force
View Answer
A. Gravitational force
The planet nearest to the earth is______________?
Options:
- A. Venus
- B. Mercury
- C. Uranus
- D. Sun
View Answer
A. Venus
Irregular flow of fluid is called_______________?
Options:
- A. Streamline
- B. Turbulent
- C. Uniform
- D. Laminar
View Answer
B. Turbulent
A chimney works best if air exposed to the chimney is______________?
Options:
- A. Stationary
- B. Moving
- C. Moving slowly
- D. Moving fast
View Answer
D. Moving fast
In S.H.M. the velocity of a particle is maximum at________________?
Options:
- A. mean position
- B. extreme position
- C. middle between the mean and extreme position on the right side
- D. middle between the mean and extreme position on the left side
View Answer
A. mean position
For what displacement the P.E becomes 1/4 of its maximum value ?
Options:
- A. x = x
- B. x = x
- C. x = x
- D. x = x(2)
View Answer
B. x = x
For a simple pendulu,m the restoring force is caused by________________?
Options:
- A. Gravity
- B. Spring
- C. Hand
- D. All of these
View Answer
A. Gravity
Sum of the masses of constituent nucleons as compared to the mass of the resultant nucleus is______________?
Options:
- A. Smaller
- B. Greater than 82
- C. Same
- D. Sometimes smaller some times greater
View Answer
B. Greater than 82
T.V sets and microwave ovens emit ___________________?
Options:
- A. X-rays
- B. ?-rays
- C. ?-rays
- D. ?-rays
View Answer
A. X-rays