Advertisements
Advertisements
Question
How can the presence of ultraviolet radiation be detected?
Solution
In the presence of ultra-violet radiation, the silver chloride solution becomes dark brown or black.
APPEARS IN
RELATED QUESTIONS
Study the following figure in which a student has marked the angle of incidence (∠i), angle of refraction (∠r), angle of emergence (∠e), angle of prism (∠A) and the angle of deviation (∠D). The correctly marked angles are
(a) ∠A and ∠i
(b) ∠A, ∠i and ∠r
(c) ∠A, ∠i, ∠e and ∠D
(d) ∠A, ∠i, ∠r and ∠D
Explain the cause of dispersion of white light through a prism.
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.
If white light is used in same way what change is expected in the emergent beam?
Suggest one way, in each case, by which we can detect the presence of Infrared radiations.
The phenomena of light involved in the formation of rainbow are ______.
The splitting of white light into its component colours is called ____________.
What is Newton’s disc?
______ colour is deviated the least in the spectrum of white light obtained with a glass prism.
