Q6 of 10 Page 107

An object of height 3 cm is placed in front of a convex lens of focal length 10 cm at a distance of 15 cm.

What is the nature of the image?

Nature of the image is real (can be taken on a screen) , inverted (upside down)and Enlarged (large than object size) .


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5

Observer the figure. Light falling on two different media are shown.


(a) Which medium has greater optical density?


(b) Why?


(c) Which medium has a greater refractive index?

 6

An object of height 3 cm is placed in front of a convex lens of focal length 10 cm at a distance of 15 cm.

What is the distance of the image formed?

 6

An object of height 3 cm is placed in front of a convex lens of focal length 10 cm at a distance of 15 cm.

What is the height of the image?

 1

Observe the refraction taking place when two prisms are kept together. Analysing the figure, prove that lens is a combination of prisms.