Home
Class 12
PHYSICS
A point object O approaches a biconvex l...

A point object O approaches a biconvex lens of focal length 40 cm along its optic axis with a speed of 10 m/s while the later receeds away from the former with a speed of 4 cm/s. Find the speed and direction of motion of the image when the object is at a distance of 60 cm from the lens.

A

10 cm/s, leftwards

B

10 cm/s, right wards

C

28 cm/s rightwards

D

28 cm/s leftwards

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-III (LEVEL-II (ADVANCED) MORE THAN ONE CORRECT ANSWER TYPE QUESTIONS))|1 Videos

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-III (LEVEL-II (ADVANCED) LINKED COMPREHENSION TYPE QUESTIONS))|3 Videos

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-III (LEVEL-I (MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS))|7 Videos

  • ELEMENTS OF VECTORS

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|10 Videos

  • LAWS OF MOTION

    AAKASH SERIES|Exercise PRACTICE EXERCISE|106 Videos

Similar Questions

Explore conceptually related problems

An object is at a distance of 20 m form a convex lens of focal length 0.3m The lens forms an image of the object moves away form the lens at a speed of 5m//s the speed and direction of the image will be :

An object of length 2.0 cm is placed perpendicular to the principal axis of a convex lens of focal length 12 cm. Find the size of the image of the object is at a distance of 8.0 cm from the lens.

An object is 20 cm away from a concave mirror with focal length 15 cm. If the object moves with a speed of 5 m/s along the axis, then the speed of the image will be

An object is approaching a convex lens of focal length 0.3m with a speed of 0.01m s^(-1) . Find the magnitudes of the ratio of change of position and lateral magnification of image when the object is at a distance of 0.4m from the lens

An object approaches a convergent lens from the left of the lens with a uniform speed 5 m//s and stops at the focus. The image.

An object approaches a convergent lens from the left of the lens with a uniform speed 5 m//s and stops at the focus. The image.

An object is 20 cm away from a concave mirror of focal length, 15 cm. If the object moves with a speed of 5 m/s along the axis, then the instantaneous speed of image will be

Distance of an object from a concave lens of focal length 20 cm is 40 cm. Then linear magnification of the image

An object is placed at a distance of 12 cm from a convex lens of focal length 8 cm. Find : nature of the image

An object is placed at a distance of 12 cm from a convex lens of focal length 8 cm. Find : the position of the image