Question

give assumption of Huygens wave theory of light​

Answer 1

Answer:

hi

Explanation:

Huygens relied on the following assumptions: The speed of light is very high and so it is unlikely that light consists out of a stream of particles. Particles at such a speed would experience great resistance precisely according to Newton's 2nd law.

Answer 2

When an electric current is passed through a glass tube that contains hydrogen gas at low pressure the tube gives off blue light. When this light is passed through a prism (as shown in the figure below), four narrow bands of bright light are observed against a black background.

Diagram

These narrow bands have the characteristic wavelengths and colors shown in the table below.

Wavelength Color

656.2 red

486.1 blue-green

434.0 blue-violet

410.1 violet

Four more series of lines were discovered in the emission spectrum of hydrogen by searching the infrared spectrum at longer wave-lengths and the ultraviolet spectrum at shorter wavelengths. Each of these lines fits the same general equation, where n1 and n2 are integers and RH is 1.09678 x 10-2 nm-1.

Equation