Tag: india’s space programmes

Questions Related to india’s space programmes

The minimum distance of a satellite from the centre of the earth is 3R, where R is the radius of 2GM What is the earth. The mass of earth is M. The maximum speed of the satellite is $\sqrt { \frac { 2 G M } { 3 R } }$ radius of curvature at the point of minimum distance?

physics space missions launching of an artificial satellites around the earth launching of satellite india’s space programmes

  1. 6 R

  2. 4 R

  3. 3 R

  4. $\frac { 9 R } { 2 }$

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Correct Option: A
Explanation:

$\begin{array}{l} F=\dfrac { { G\left( M \right) m } }{ { { { \left( { 3R } \right)  }^{ 2 } } } }  \ \Rightarrow a=\dfrac { { GM } }{ { 9{ R^{ 2 } } } }  \ \therefore \dfrac { { { V^{ 2 } } } }{ { R' } } =a \ \Rightarrow \dfrac { { 2GM } }{ { 3R.R' } } =\dfrac { { GM } }{ { 9{ R^{ 2 } } } }  \ \Rightarrow R'=6R \ Hence, \ option\, \, A\, \, is\, \, correct\, \, answer. \end{array}$

Which star is called earth satellite?

geography space travel launching of an artificial satellites around the earth launching of satellite india’s space programmes

  1. Moon

  2. Venus

  3. Saturn

  4. Sun

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Correct Option: A
Explanation:

Moon is called as earth satellite. The moon is called as earth satellite because moon moves around the earth. Earth and moon are called as natural satellites.