Physics
Which of the following is used to split white light into different colours ?

Prism
Convex lens
Concave lens
Glass slab

ANSWER DOWNLOAD EXAMIANS APP

Physics
Water pipes in hilly areas often burst on a cold frosty night, because

Frost makes the pipes rusty, so they break
Water in the pipes freezes and on freezing water expands, so pipes break
The material of which pipes are made contracts due to cold and so breaks
None of these

ANSWER DOWNLOAD EXAMIANS APP

Physics
Which one of the following is not a property of electromagnetic waves?

Electromagnetic waves do not show interference and diffraction.
Electromagnetic waves do not require a medium to propagate.
Oscillating electric field and magnetic field are perpendicular to each other.
Electromagnetic waves are transverse waves

ANSWER DOWNLOAD EXAMIANS APP