Physics
A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be

A vertical straight line
A horizontal straight line
A circle
A parabola

ANSWER DOWNLOAD EXAMIANS APP

Physics
To resolve an object in an electron microscope,

Both A & B
The wavelength of the electrons must be close to the diameter of the object
The wavelength of the electrons must be greater than the diameter of the object.
None of these

ANSWER DOWNLOAD EXAMIANS APP