360004 A space rocket is intended to leave the earth's gravitational field. The fuel in its main engine is a little less than the amount that is necessary and an auxiliary engine, (only capable of operating for a short time) has to be used as well. When it is best to switch ON, the auxiliary engine

360005 If a projectile has a velocity greater than the escape velocity, which trajectory will it follow?

360006 Assertion :
Planet is a heavenly body revolving around the sun.
Reason :
Star is luminous body made of gaseous material.

360007 Match Column -I (Event) with Column - II (Order of the time interval for happening of the event) and select the correct option from the options given below the lists.
Column I
Column II
A
Rotation period of earth
P
\({10^5}s\)
B
Revolution period of earth
Q
\({10^7}s\)
C
Period of a light wave
R
\({10^{ - 15}}s\)
D
Period of sound wave
S
\({10^{ - 3}}s\)

360008 A particle of mass \({m}\) is projected from the surface of the earth with velocity \({10 {~km} / {sec}}\) at an angle \({60^{\circ}}\) with horizontal. If \({V}\) is the speed of the particle at the point of maximum height of the particle from the surface of the earth, then find the value of \({V}\) which will be less than (a minimum value of velocity in \({{km} / {sec}}\) ) an integer from 0 to 9.

360004 A space rocket is intended to leave the earth's gravitational field. The fuel in its main engine is a little less than the amount that is necessary and an auxiliary engine, (only capable of operating for a short time) has to be used as well. When it is best to switch ON, the auxiliary engine

360005 If a projectile has a velocity greater than the escape velocity, which trajectory will it follow?

360006 Assertion :
Planet is a heavenly body revolving around the sun.
Reason :
Star is luminous body made of gaseous material.

360007 Match Column -I (Event) with Column - II (Order of the time interval for happening of the event) and select the correct option from the options given below the lists.
Column I
Column II
A
Rotation period of earth
P
\({10^5}s\)
B
Revolution period of earth
Q
\({10^7}s\)
C
Period of a light wave
R
\({10^{ - 15}}s\)
D
Period of sound wave
S
\({10^{ - 3}}s\)

360008 A particle of mass \({m}\) is projected from the surface of the earth with velocity \({10 {~km} / {sec}}\) at an angle \({60^{\circ}}\) with horizontal. If \({V}\) is the speed of the particle at the point of maximum height of the particle from the surface of the earth, then find the value of \({V}\) which will be less than (a minimum value of velocity in \({{km} / {sec}}\) ) an integer from 0 to 9.

360004 A space rocket is intended to leave the earth's gravitational field. The fuel in its main engine is a little less than the amount that is necessary and an auxiliary engine, (only capable of operating for a short time) has to be used as well. When it is best to switch ON, the auxiliary engine

360005 If a projectile has a velocity greater than the escape velocity, which trajectory will it follow?

360006 Assertion :
Planet is a heavenly body revolving around the sun.
Reason :
Star is luminous body made of gaseous material.

360007 Match Column -I (Event) with Column - II (Order of the time interval for happening of the event) and select the correct option from the options given below the lists.
Column I
Column II
A
Rotation period of earth
P
\({10^5}s\)
B
Revolution period of earth
Q
\({10^7}s\)
C
Period of a light wave
R
\({10^{ - 15}}s\)
D
Period of sound wave
S
\({10^{ - 3}}s\)

360008 A particle of mass \({m}\) is projected from the surface of the earth with velocity \({10 {~km} / {sec}}\) at an angle \({60^{\circ}}\) with horizontal. If \({V}\) is the speed of the particle at the point of maximum height of the particle from the surface of the earth, then find the value of \({V}\) which will be less than (a minimum value of velocity in \({{km} / {sec}}\) ) an integer from 0 to 9.

360004 A space rocket is intended to leave the earth's gravitational field. The fuel in its main engine is a little less than the amount that is necessary and an auxiliary engine, (only capable of operating for a short time) has to be used as well. When it is best to switch ON, the auxiliary engine

360005 If a projectile has a velocity greater than the escape velocity, which trajectory will it follow?

360006 Assertion :
Planet is a heavenly body revolving around the sun.
Reason :
Star is luminous body made of gaseous material.

360007 Match Column -I (Event) with Column - II (Order of the time interval for happening of the event) and select the correct option from the options given below the lists.
Column I
Column II
A
Rotation period of earth
P
\({10^5}s\)
B
Revolution period of earth
Q
\({10^7}s\)
C
Period of a light wave
R
\({10^{ - 15}}s\)
D
Period of sound wave
S
\({10^{ - 3}}s\)

360008 A particle of mass \({m}\) is projected from the surface of the earth with velocity \({10 {~km} / {sec}}\) at an angle \({60^{\circ}}\) with horizontal. If \({V}\) is the speed of the particle at the point of maximum height of the particle from the surface of the earth, then find the value of \({V}\) which will be less than (a minimum value of velocity in \({{km} / {sec}}\) ) an integer from 0 to 9.

360004 A space rocket is intended to leave the earth's gravitational field. The fuel in its main engine is a little less than the amount that is necessary and an auxiliary engine, (only capable of operating for a short time) has to be used as well. When it is best to switch ON, the auxiliary engine

360005 If a projectile has a velocity greater than the escape velocity, which trajectory will it follow?

360006 Assertion :
Planet is a heavenly body revolving around the sun.
Reason :
Star is luminous body made of gaseous material.

360007 Match Column -I (Event) with Column - II (Order of the time interval for happening of the event) and select the correct option from the options given below the lists.
Column I
Column II
A
Rotation period of earth
P
\({10^5}s\)
B
Revolution period of earth
Q
\({10^7}s\)
C
Period of a light wave
R
\({10^{ - 15}}s\)
D
Period of sound wave
S
\({10^{ - 3}}s\)

360008 A particle of mass \({m}\) is projected from the surface of the earth with velocity \({10 {~km} / {sec}}\) at an angle \({60^{\circ}}\) with horizontal. If \({V}\) is the speed of the particle at the point of maximum height of the particle from the surface of the earth, then find the value of \({V}\) which will be less than (a minimum value of velocity in \({{km} / {sec}}\) ) an integer from 0 to 9.