Class 10ScienceThe Human Eye and the Colourful WorldMix Examples - The Human Eye and the Colourful World
Medium$A$ beam of white light falling on a glass prism gets split up into seven colours marked $1$ to $7$ as shown in the diagram. $A$ student makes the following statements about the spectrum observed on the screen.
$(a)$ The colours at position marked $3$ and $5$ are similar to the colour of the core of a hard-boiled egg and the colour of the sky respectively. Is the statement made by the student correct or incorrect? Justify.
$(b)$ Which of the two positions correspond closely to the colour of $(i)$ a solution of potassium permanganate,$(ii)$ danger or stop signal lights?
$(a)$ The colours at position marked $3$ and $5$ are similar to the colour of the core of a hard-boiled egg and the colour of the sky respectively. Is the statement made by the student correct or incorrect? Justify.
$(b)$ Which of the two positions correspond closely to the colour of $(i)$ a solution of potassium permanganate,$(ii)$ danger or stop signal lights?
(N/A) The colours at positions $3$ and $5$ are yellow and blue respectively. The student has identified them as yellow (i.e.,colour of the core of a hard-boiled egg) and blue (i.e.,colour of the sky) respectively. Hence,the statement is correct.
$(b)$ $(i)$ Position $7$ is the position of violet colour,which corresponds to the colour of a solution of potassium permanganate.
$(ii)$ Position $1$ is the position of red colour,which corresponds to the colour of danger or stop signal lights.
$(b)$ $(i)$ Position $7$ is the position of violet colour,which corresponds to the colour of a solution of potassium permanganate.
$(ii)$ Position $1$ is the position of red colour,which corresponds to the colour of danger or stop signal lights.
Explore More
Similar Questions
Mention the factor on which scattering of light depends. Why does the sky appear dark in space?
Easy
View SolutionThrough which part of the eye do light rays from an object first enter the eye?
Easy
View SolutionSushil went to an eye specialist for a check-up. The doctor prescribed him to use spectacle lenses of $+0.5 \text{ D}$ power.
$(a)$ Name the defect of vision he is suffering from.
$(b)$ Find the focal length of the spectacle lens.
$(a)$ Name the defect of vision he is suffering from.
$(b)$ Find the focal length of the spectacle lens.
Medium
View SolutionWhat color of light is produced when blue and yellow light are superimposed?
Easy
View SolutionWhat is the complementary color of red?
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo