Physics
Ozone layer in the outer atmosphere helps us in

Reflecting radio waves and makes radio communication possible
Absorbing cosmic ray particles
Regulating the temperature of atmosphere
Absorbing UV radiations

ANSWER DOWNLOAD EXAMIANS APP

Physics
Indicate the false statement about the resistance of a wire

It is directly proportional to the length of wire
It is directly proportional to the area of cross-section of wire
Resistance of metallic wire increases with increase in temperature
It depends on material of wire

ANSWER DOWNLOAD EXAMIANS APP