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
In the given velocity (V) versus time (t) graph, accelerated and decelerated motions are respectively represented by line segments
CD and BC
BC and AB
CD and AB
AB and CD
Which one of the following statements regarding a thermos flask is NOT correct?
The walls of flask are separated by vacuum and made of glass which is a poor conductor of heat
The glass walls themselves have shiny surfaces
The surface of inner wall radiates good amount of heat and the surface of outer wall absorbs some of the heat that is radiated from the inner wall
The cork supports are poor conductors of heat
‘Black hole’ is a
huge black star which has zero acceleration due to gravity on its surface
star which has moderate acceleration due to gravity on its surface
star which has collapsed into itself and has large acceleration due to gravity on its surface.
star which has collapsed into itself and has zero acceleration due to gravity on its surface
The formula for conversion between Fahrenheit and Celsius is
0F = X + (1.8 × 0C) What is factor X?
32
22
98
42
When a beam of white light passes through a glass prism, the colour of light beam that deviates the least is _________.
Blue
Red
Green
Violet
