In a concave lens,a ray of light emanating from the object parallel to the principal axis of the lens,after refraction:
- Apasses through the second principal focus.
- Bappears to diverge from the first principal focus.
- Cpasses through $2F$,which is the radius of curvature of the lens.
- Demerges parallel to the principal axis.
Explore More
Similar Questions
An object is placed at a distance of $1.50 \, m$ from a screen. $A$ convex lens is placed between them to form a real image four times larger than the object on the screen. The position of the lens is at a distance of ..... (in $, m$)
Difficult
View SolutionTwo convex lenses of focal lengths $f_1$ and $f_2$ form images with magnification $m_1$ and $m_2$,when used individually for an object kept at the same distance from the lenses. Then,$f_1 / f_2$ is
DifficultTS EAMCET 2016
View Solution$A$ glass convex lens $(\mu_{g}=1.5)$ has a focal length of $8 \ cm$ when placed in air. What would be the focal length of the lens in $cm$ when it is immersed in water $(\mu_{w}=\frac{4}{3})$?
Difficult
View Solution$Assertion (A)$: The focal length of a lens does not change when red light is replaced by blue light.
$Reason (R)$: The focal length of a lens does not depend on the colour of the light used.
$Reason (R)$: The focal length of a lens does not depend on the colour of the light used.
When a convex lens is immersed in a liquid of refractive index equal to $80 \%$ of the refractive index of the material of the lens,the focal length of the lens increases by $100 \%$. The refractive index of the liquid is
Vedclass 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