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
Bats can ascertain distances, directions, nature, and the size of the obstacles at night. This is possible by the reflection of the:
Ultrasonic waves from the bat.
Ultrasonic waves from the distant objects.
Supersonic waves from the bat
Supersonic waves from the distant objects.
When a moving bus suddenly applies brakes, the passengers sitting in it fall in the forward direction. This can be explained by:
The theory of relativity
Newton’s first law
Newton’s second law
Newton’s third law
The material used for electric fuse is an alloy of tin and lead. This alloy should have:
High specific resistance and low melting point
Low specific resistance and high melting point
Low specific resistance and low melting point
High specific resistance and high melting point
Light travels slower in glass than in air because:
Refractive index of air is less than that of glass
Refractive index of air is greater than that of glass
Density of glass is greater than that of air
Density of glass in less than that of air
The lines of force of a uniform magnetic field:
Must be convergent
Must be divergent
Must be parallel to each other
Intersect
