According to the Cartesian sign convention in ray optics,
- Aall distances are taken positive.
- Ball distances are taken negative.
- Call distances measured in the direction of the incident ray are taken positive.
- Dall distances measured in the direction of the incident ray are taken negative.
Explore More
Similar Questions
When can it be assumed that light moves in a straight line?
Difficult
View SolutionCorpuscular theory of light predicts the speed of light to be
Medium
View Solution$A$ tank is filled with water to a height of $12.5 \, cm$. The apparent depth of a needle lying at the bottom of the tank is measured by a microscope to be $9.4 \, cm$. The refractive index of water is .....
Easy
View SolutionIn the figure below,$PQRS$ denotes the path followed by a ray of light as it travels through three media in succession. The absolute refractive indices of the media are $\mu_1, \mu_2$ and $\mu_3$,respectively. (The line segment $RS$ in the figure is parallel to $PQ$). Then,
MediumKVPY 2012
View SolutionLight of wavelength $7200 \ \mathring{A}$ in air. It has a wavelength in glass $(\mu = 1.5)$ equal to.......$\mathring{A}$
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