The production of pure spectrum could easily be achieved ...
The production of pure spectrum could easily be achieved using a?
glass prism with a pin
triangular prism with two convex lens
traingular prism only
triangular prism with two concave lenses
Correct answer is B
No explanation has been provided for this answer.
The heat produced in a conductor carrying an electric current is ...
Gases conduct electricity under ...
The change of state from solid to liquid occurs ...
An image which cannot be formed on a screen is said to be ...
An electron of mass 9.1 x 10\(^{-31}\) kg moves with a speed of 2.0 x 10\(^6\) ms\(^{-1}\) roun...