1. Kepler’s First Law is known as-
- Law of orbits
- Law of areas
- Law of periods
- None of these.
[su_spoiler title=”View Answer ” style=”fancy”]Law of orbits[/su_spoiler]
2. Kepler’s second law is known as-
- Law of orbits
- Law of periods
- Law of areas
- None of these.
[su_spoiler title=”View Answer ” style=”fancy”]Law of areas [/su_spoiler]
3. Kepler’s Second Law is a consequence of-
- Conservation of energy
- Conservation of linear momentum
- Conservation of angular momentum
- Conservation of mass.
[su_spoiler title=”View Answer ” style=”fancy”]Conservation of angular momentum [/su_spoiler]
4. Which of the following Kepler’s Law is known as Harmonic Law?
- Second Law
- First Law
- Third Law
- None of these.
[su_spoiler title=”View Answer ” style=”fancy”]Third Law [/su_spoiler]
5. S. I. unit of “G’ is-
- Nm⁻²Kg⁻²
- NmKg⁻²
- Nm⁻²Kg
- Nm²Kg⁻²
[su_spoiler title=”View Answer ” style=”fancy”]Nm²Kg⁻² [/su_spoiler]
6. Gravitational force depends on-
- Electric charge
- Mass
- Electric Current
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]Mass [/su_spoiler]
7. Dimensional formula of gravitational constant is-
- [M⁻¹L³T⁻²]
- [M³L³T⁻³]
- [M³L³T³]
- [LT⁻³]
[su_spoiler title=”View Answer ” style=”fancy”][M⁻¹L³T⁻²] [/su_spoiler]
8. The value of acceleration due to the gravity of the earth –
- 98 m/s²
- 0.98 m/s²
- 9.8 m/s²
- 0.098 m/s²
[su_spoiler title=”View Answer ” style=”fancy”]9.8 m/s² [/su_spoiler]
9. Value of ‘g’ is-
- maximum at poles
- maximum at the equator
- same everywhere
- maximum at the center of the earth.
[su_spoiler title=”View Answer ” style=”fancy”]maximum at poles [/su_spoiler]
10. If we go down from the earth’s surface, the value of acceleration due to gravity (g)-
- decreases
- remains constant
- increases
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]decreases[/su_spoiler]
11. The escape velocity does not depend upon-
- mass of the body
- height of the location from where it is projected
- the density of the body
- None of these.
[su_spoiler title=”View Answer ” style=”fancy”]mass of the body[/su_spoiler]
12. The time period of a simple pendulum in a satellite is-
- Same on the earth
- Zero
- Infinite
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]Infinite [/su_spoiler]
13. The weight of a body at the center of the earth is-
- Zero
- Infinite
- Same as on the surface of the earth
- None of these
[su_spoiler title=”View Answer ” style=”fancy”]Zero [/su_spoiler]
