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
A coin in a beaker filled with water appears raised because of
reflection of light.
refraction of light.
total internal reflection of light.
interference of light.
Which one among the following denotes the smallest temperature?
1° on the Celsius scale
1° on the Kelvin scale
1° on the Fahrenheit scale
1° on the Reaumur scale
A particle oscillates in one dimension about the equilibrium position subject to a force Fx(x) that has an associated potential energy U(x). If k is he force constant, which one of the following relations is true?
Fx(x) = -kx2
Fx(x) = -kx
U(x) = ½ kx
U(x) = ½ k2x
When a body moves with simple harmonic motion, then the phase difference between the velocity and the acceleration is
0°
90°
180°
270°
A body is thrown vertically upwards and then falls back on the ground. Its potential energy is maximum
on the ground
at the maximum height
during the return journey
both on the ground and at the maximum height
