Advertisements
Advertisements
प्रश्न
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
उत्तर
The correctly marked angles in the given figure are the angle of prism (A) and the angle of incidence (i).
All the angles are correctly marked in the figure shown below.
Hence, the correct answer is option (a).
APPEARS IN
संबंधित प्रश्न
Describe an activity to show that colours of white light splitted by a glass prism can be recombined to get white light by another identical glass prism. Also draw ray diagram to show the recombination of the spectrum of white light.
Define the term dispersion of white light.
In the formation of spectrum of white light by a prism:
which colour is deviated most?
Out of air and glass, which is optically rarer? Give reason.
What do you understand by the term spectrum? Name the various colours present in the spectrum of sunlight.
The frequency range of visible light is from 3.75 × 1014 Hz to 7.5 × 1014 Hz. Calculate its wavelength range. Take speed of light = 3 × 108 m/s.
A wave has wavelength 50Å of State the speed in vacuum.
Say TRUE or FALSE
Rainbow is formed by dispersion of which light by water drops
______ colour is deviated the least in the spectrum of white light obtained with a glass prism.
