Physics
One light year is equal to

8 trillion miles
2 trillion miles
6 trillion miles
9 trillion miles

ANSWER DOWNLOAD EXAMIANS APP

Physics
Which one of the following statements with regard to Jet stream, an upper level tropospheric wave, is not correct?

In summer, the polar front jet achieves its maximum force.
It follows the wave path near the tropopause at elevations of 8 km to 15 km.
It is narrow band of high-velocity wind.
Jet streams are typically continuous over long distances.

ANSWER DOWNLOAD EXAMIANS APP

Physics
Stars twinkle because

the intensity of light emitted by them changes with time.
the distance of the stars from the earth changes with time.
the refractive index of the different layers of the earth's atmosphere ch
None of these

ANSWER DOWNLOAD EXAMIANS APP