Which one of the following statements is correct? - Vidyadip

MCQ

Which one of the following statements is correct?

A
The energy required to rocket an orbiting satellite out of earth's gravitational influence is more than the energy required to project a stationary object at the same height $($as the satellite$)$ out of earth's influence.
B
If the zero of potential energy is at infinity, the total energy of an orbiting satellite is negative of potential energy.
C
The first artificial satellite sputnik I was launched in the year $2001.$
✓
The time period of rotation of the $\text{SYNCOMS.} ($Synchronous communications satellite$)$ is $24$ hours.

✓

Answer

Correct option: D.

The time period of rotation of the $\text{SYNCOMS.} ($Synchronous communications satellite$)$ is $24$ hours.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Gravitation→Gravitation — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The relative velocity $V_{BA}$ Or $V_{AB}$ is zero for two particles moving along $x-$axis uniformly. The position$-$time graph for this situation will be:

In the following figure $r_1$ and $r_2$ are $5\, cm$ and $30\, cm$ respectively. If the moment of inertia of the wheel is $5100\, kg-m^2$ then its angular acceleration will be

A car starting from rest and moves such that it possesses average speeds $5 \,ms^{-1}, 10\, ms^{-1}$ and $15\, ms^{-1}$ in the first, second and third seconds. What is the total distance covered by the car in these three seconds ?.........$m$

A block of mass $10 kg$ is moving on a rough surface as shown in figure. The frictional force acting on block is ...... $N$

Two identical balls $A$ and $B$ are released from the positions shown in figure. They collide elastically on horizontal portion $MN$. All surfaces are smooth. The ratio of heights attained by $A$ and $B$ after collision will be(Neglect energy loss at $M$ & $N$)

Who gave Universal Law of Gravitation?

The volume of a gas is reduced adiabatically to $\frac{1}{4}$ of its volume at $27°C$, if the value of $\gamma = 1.4,$ then the new temperature will be

A scooter is going round a circular road of radius $100 \,m$ at a speed of $10 \,m/s$. The angular speed of the scooter will be ......... $rad/s$

Two different types of rubber are found to have the stress-strain curves as shown. Then

The density of a solid ball is to be determined in an experiment. The diameter of the ball is measured with a screw gauge, whose pitch is $0.5 \ mm$ and there are $50$ divisions on the circular scale. The reading on the main scale is $2.5 \ mm$ and that on the circular scale is $20$ divisions. If the measured mass of the ball has a relative error of $2 \%$, the relative percentage error in the density is