Advertisements
Advertisements
Question
Solution
APPEARS IN
RELATED QUESTIONS
What do you understand by the deviation produced by a prism? Why is it caused?
i) Observe the given figure and answer the following questions.
a) Identify and write the natural process shown in the figure.
b) List the phenomena which are observe in this process.
c) Redraw the diagram and show above phenomena in it.
If a light ray does not undergo, refraction at the boundary between two media, the angle of incidence is:
Answer the following question.
Under what conditions are total internal reflection possible? Explain it with a suitable example.
Solve Numerical example.
From the given data set, determine angular dispersion by the prism and dispersive power of its material for extreme colours. nR = 1.62 nV = 1.66, δR = 3.1°
For the same angle of incidence, the angle of refraction in four media A, B, C and D are 25°, 30°, 35° and 40° respectively. The speed of light is least in medium ______.
The entire light is reflected back into the denser medium is called ______.
A bundle of glass threads, each of which is capable of transmitting messages using light waves is called ______.
Write any two uses of total internal reflection.
A rectangular block of glass ABCD has a refractive index 1.6. A pin is placed midway on the face AB (Figure). When observed from the face AD, the pin shall ______.
- appear to be near A.
- appear to be near D.
- appear to be at the centre of AD.
- not be seen at all.
