Advertisements
Advertisements
प्रश्न
When a white light ray falls on a prism, the ray at its first surface suffers ______.
पर्याय
No refraction
Only dispersion
Only deviation
Both deviation and dispersion
उत्तर
When a white light ray falls on a prism, the ray at its first surface suffers both deviation and dispersion.
APPEARS IN
संबंधित प्रश्न
How could you show that the colours of the spectrum combine to give white light?
A ray of light moving from an optically rarer to a denser medium
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.
In the spectrum of white light by a prism, the colour at the extreme end opposite to the base of prism is ______.
In an experiment to trace the path of a ray of light through a triangular glass prism, a student would observe that the emergent ray
(a) is parallel to the incident ray.
(b) is along the same direction of incident ray.
(c) gets deviated and bends towards the thinner part of the prism.
(d) gets deviated and bends towards the thicker part (base) of the prism.
A glass prism is able to produce the spectrum when white light passes through it, but a glass slab doesn’t produce any spectrum. Explain why it is so.
A wave has wavelength 50Å of State the speed in vacuum.
Write the range of wavelength of the infrared spectrum.
State the correct sequence (1-7) of colours in the spectrum formed by the prisms A and B, shown in Figure 15.2.
The periscope is an optical device with a polished surface that reflects the light falling on it.
