Question Detail
Which unit we use to express Nuclear sizes ?
- Tesla
- Newton
- Fermi
- None of above
Answer: Option C
1. If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this ?
- Newton first law
- Newton second law
- Newton third law
- Principle of conservation of linear momentum
Answer: Option D
2. What is the relation between wavelength, frequency and velocity ?
- velocity of wave = frequency * wavelength
- velocity of wave = frequency/wavelength
- velocity of wave = wavelength/frequency
- None of above
Answer: Option A
3. Which unit we use to express Nuclear sizes ?
- Tesla
- Newton
- Fermi
- None of above
Answer: Option C
4. What is escape velocity ?
- Escape velocity is the maximum velocity with which a body should be projected from the surface of earth so it do not go beyond gravitational field of earth.
- Escape velocity is the minimum velocity with which a body should be projected from the surface of earth so it do not go beyond gravitational field of earth.
- Escape velocity is the minimum velocity with which a body should be projected from the surface of earth so as it goes out of gravitational field of earth and never return to earth.
- Escape velocity is the maximum velocity with which a body should be projected from the surface of earth so as it goes out of gravitational field of earth and never return to earth.
Answer: Option C
5. Alfred Nobel invented
- X ray
- Diesel Engine
- Dynamite
- Dynamo
Answer: Option C
Explanation:
Alfred Nobel if Sweden invented Dynamite in 1867,
X ray was invented by Wilhelm Roentgen of Germany in 1895,
Diesel Engine was invented by Rudolf Diesel of Germany 1892,
Dynamo was invented by Michael Faraday of England in 1831.