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
How many internal reflections of light take place in the formation of primary rainbow?
0
1
2
More than 2
The direction of acceleration in uniform circular motion is along the
direction of motion
tangent to the circle at the point of observation
direction of velocity
direction perpendicular to velocity
The weight of an object is due to
the net force acting on it
the total of all forces acting on it irrespective of their directions
the force that it exerts on the ground
its inert property
The Size of particles being studied in nanotechnology is about
1Å-10 nm
1-100 nm
1-50 μ
1 mm – 10 mm
Which one of the following elements are a non-metal but is lustrous?
Carbon
Silicon
Germanium
Iodine
