Stars which appear single to the naked eye but are double...
Stars which appear single to the naked eye but are double when seen through a telescope are
novas and supernovas
binaries
asteroids
quasars
Correct answer is B
No explanation has been provided for this answer.
The inside of a vacuum flask is usually coated with silver to reduce heat lost by ...
If the threshold frequency for tungsten is 1.3 x 1015Hz, what is its work function? [H = 6.6 x ...
A gas would serve as an electrical conductor under ...
Which of the following is not a consequence of hydrogen bubbles covering the copper plate ...