Physics
A linear object is placed on the axis of a lens. An image is formed by refraction in the lens. For all positions of the object on the axis of the lens, the positions of the image are always between the lens and the object.
(a) Name the lens.
(b) Draw a ray diagram to show the formation of the image of an object placed infront of the lens at any position of your choice except infinity.
Refraction Lens
10 Likes
Answer
(a) The lens is concave as the positions of the image are always between the lens and the object.
(b) Ray diagram showing the formation of the image of an object placed infront of the lens at any position except infinity:
Answered By
7 Likes
Related Questions
(a) A boy uses blue colour of light to find the refractive index of glass, then he repeats the experiment using red colour of light. Will the refractive index be the same or different in the two cases? Give a reason to support your answer.
(b) A ray of light incident on a glass slab and follow the path as shown below. If a mirror is placed at S, such that emergent ray falls normally on it, then
I. Draw diagram to show the path of ray reflected from the mirror.
II. On the basis of which principle this refraction of ray is done?
A ray of light PQ falls normally on the hypotenuse of a right angled prism ABC as shown below
(a) Copy the diagram and complete the path of ray PQ till it emerges from the prism.
(b) What is the value of the angle of deviation of the ray?
(c) Name an instrument where this action of prism is used.
Draw ray diagrams showing the image formation by a convex lens when an object is placed
(a) between optical centre and focus of the lens.
(b) between focus and twice the focal length of the lens.
(c) at twice the focal length of the lens.
(d) at infinity.
(a) A force applied on a
I. rigid body
II. non-rigid body
How does the effect of force differ in the two cases?
(b) Give one example of couple force.