Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
The law of gravitation is applicable for-
only charged body
only planets
only stars
all body in the universe having mass
What is the escape speed on earth for any object?
11.2 m/s
11.2 km/h
11.2 km/s
None of these
An object weighs 60 N when measured on the surface of the earth. Its weight on the surface of the Moon will be _______.
10 N
100 N
360 N
1 N
The time period of a satellite in a circular orbit of radius R is T. The period of another satellite in a circular orbit of radius 9R is :
3 T
9 T
27 T
12 T
The intensity of the Gravitational field of the Earth is maximum at the_________.
Surface of the earth
Poles
Centre of the earth
Equator
The value of the gravitational constant in the cgs unit is-
6.67 × 10^-11 cgs unit
6.67 × 10^-10 cgs unit
6.67 × 10^-9 cgs unit
6.67 × 10^-8 cgs unit
The geostationary satellite completes its one revolution in ________.
48 hr
24 hr
12 hr
32 hr
Gravitational force exists between ________ objects, but it cannot be felt unless the mass of the objects is very high, such as in planets.
tstsFour
Each and Every
Only two
Only one
The acceleration due to gravity at the centre of earth is
9.8 ms-2
980 ms-2
Zero
Which of the following statement is CORRECT?
The value of acceleration due to gravity is least at equator.
The value of acceleration due to gravity increased from pole to equator.
The value of acceleration due to gravity is least at poles.
The value of acceleration due to gravity is same at equator and poles.
