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 man is sitting on a rotating stool with his arms outstretched. If suddenly he folds his arm the angular velocity of the man would:
Increase
Decrease
Become zero
remain constant
For a particle revolving in a circular path, the acceleration of the particle is
along the tangent
along the radius
zero
along the circumference of the circle
A circus performer of mass M is walking along a wire as shown in the figure given above. The tension T in the wire is: (g = acceleration due to gravity)
Approximately Mg
Less than Mg/2
More than Mg
Depends on whether the performer stands on one or two feet
The visible light has a wavelength range from about 380 nm (violet) to 780 nm (red). If an exciting object emits light with a wavelength of 15 nm, to which one of the following ranges does it belong?
X-ray
Gamma-ray
Infrared
Ultraviolet
