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प्रश्न
The speed of light in air or vacuum is
विकल्प
3 × 108 M s-1
2.25 × 108 m s-1
332 ms-1
2.0 × 108 ms-1
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उत्तर
3 × 108 M s-1
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संबंधित प्रश्न
What happens when a ray of ordinary light is passed through a triangular glass prism?
When a beam of white light is passed through a prism, it splits to form lights of seven colours. Is it possible to recombine the lights of seven colours to obtain the white light again? Explain your answer.
What is spectrum?
Which of the following colour of white light has the least wavelength?
(a) red
(b) orange
(c) violet
(d) blue
A ray of white light falls on a prism. Draw a ray diagram to show that the prism disperses the white light.
In figure AO is the ray of white light falling on a prism PQR. Complete the diagram till the light emerges out from the prism and falls on the screen.
When a white light ray falls on a prism, the ray at its first surface suffers ______.
A wave has wavelength 50Å of State its one use.
The splitting of white light in to seven colors is called ______.
