Physics
A transformer

Converts AC voltage to D.C. voltage
Converts electrical energy into mechanical energy
Converts DC to AC
Is used to decrease or increase AC voltage

ANSWER DOWNLOAD EXAMIANS APP

Physics
Plants are dried up in winter due to frost because

Evaporation does not take place
There is mechanical loss of tissues and drought condition prevails
Photosynthesis does not take place at such low temperature
Respiration does not take place at low temperature

ANSWER DOWNLOAD EXAMIANS APP

Physics
A man standing at the top of a tower has two spheres A and B. He drops sphere A downwards and throws sphere B horizontally at the same time. Which of the following is correct ?

The question is incomplete because the masses of the spheres are not given.
A will reach the ground first.
B will reach the ground first.
Both the spheres will reach the ground simultaneously.

ANSWER DOWNLOAD EXAMIANS APP