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
Consider the following statements.
1. In the Solar system planets, only Jupiter and Saturn have rings around them.
2. The rings surrounding the solar system planet are large enough to be visible from naked eyes.
Which of the above is/are correct?
1 only
2 only
Both 1 and 2
None
As meteoroids come near the earth and tend to drop upon it, we often see a flash of light. This is caused due to
Air induced friction borne by meteoroids
Charged particle emission by meteoroids
Destruction of ozone layer by meteoroids
Ion exchange between Ionosphere and meteoroids
1. Beyond the low earth orbit, spacecrafts face hazards from cosmic rays and solar flares.
2. Astronauts on interplanetary missions face health threats from cosmic rays beyond earth’s magnetosphere.
Duration of day and night on earth are altered or affected due to
1. Axial tilt of the earth and revolution of earth around the Sun
2. Polar bulge
3. Refraction of light by the atmosphere of the earth
Select the correct answer using the codes below.
1 and 3 only
2 and 3 only
1, 2 and 3
Consider the following about the International Date Line.
1. It is a straight line that connects North Pole and South Pole.
2. It demarcates the change of one calendar day to the next.
3. The line passes through the Indian Ocean.
1 and 2 only