Physics
A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers.

Total internal reflection
Refraction
Reflection
Diffraction

ANSWER DOWNLOAD EXAMIANS APP

Physics
Super conductors are substances that

Offer minimum resistance to flow of electric current
Offer high resistance to the flow of electric current
Conduct electricity at high temperature
Conduct electricity at low temperature

ANSWER DOWNLOAD EXAMIANS APP