Physics
In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie ?

Ultraviolet
X-ray
Visible
Infrared

ANSWER DOWNLOAD EXAMIANS APP

Physics
The bats can fly in the dark because

They have weak legs and are likely to be attacked by predators
They generate ultrasonic sound waves
They can see the objects in darkness
They generate flashes of light

ANSWER DOWNLOAD EXAMIANS APP

Physics
'Mirage' is an example of

Dispersion of light only
Refraction and total internal reflection of light
Total internal reflection of light only
Refraction of light only

ANSWER DOWNLOAD EXAMIANS APP