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) When a body falls towards Earth, its motion is due to acceleration due to gravity.
2) When a satellite orbits close to a planet, its time period depends upon Density of the Satellite.
3) Acceleration due to gravity decreases with altitude.
Which of the above are true?
Only 1
Only 1 & 2
Only 3
None of the above
Creation of something from nothing is against the law of
Constant Proportions
Conservation of Mass-Energy
Multiple Proportions
Conservation of Momentum
X-rays are
deflected by an electric eld but not a magnetic field
deflected by a magnetic eld but not by an electric field
deflected by both a magnetic eld and an electric field
not deflected by an electric eld or a magnetic field
With regard to Archimedes' principle, which of the following statements is correct:
The buoyant force exerted on a body immersed in a fluid is equal to the volume of the fluid that the body displaces
On a body immersed in a fluid, the pressure is greater on lower surfaces of the body than on the upper surfaces
On a body immersed in a fluid, the upward force on the bottom of the body is less than the downward force on its top
A charge particle moves with ‘v’ velocity and the uniform magnetic field of ‘B’. The experienced magnetic force on the particle is -
Always zero
Zero if B and V are perpendicular
Zero if B and V are parallel
Zero if B and V are inclined at 30 0
