Mention two main points about light.
(N/A) There are two main points about light:
$(i)$ It travels with enormous speed,and its presently accepted value in a vacuum is $c = 2.99792458 \times 10^{8} \ m/s$. For practical purposes,$c = 3 \times 10^{8} \ m/s$,which is the highest speed attainable in nature.
$(ii)$ Light travels in a straight line.
$(i)$ It travels with enormous speed,and its presently accepted value in a vacuum is $c = 2.99792458 \times 10^{8} \ m/s$. For practical purposes,$c = 3 \times 10^{8} \ m/s$,which is the highest speed attainable in nature.
$(ii)$ Light travels in a straight line.
Explore More
Similar Questions
Which of the following can form a diminished,virtual,and erect image of your face?
Medium
View SolutionThe inverse square law for illuminance is valid for:
Easy
View SolutionHow can we change a camera from $F/4$ to $F/5.6$?
DifficultAIIMS 2019
View SolutionTwo plane mirrors are at an angle such that a ray incident on one mirror undergoes a total deviation of $240^o$ after two reflections. Which of the following statements is correct?
If $\hat{n}_1$ is the unit vector along the incident ray,$\hat{n}_2$ is the unit vector along the normal,and $\hat{n}_3$ is the unit vector along the reflected ray,then which of the following must be true?
Medium
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