Question

please give me 10 numerical questions from chapter LIGHT : Reflection and refraction for class 10.what is light

Answer 1

1 . an object lies at a distance of 2f from a concave lens of focal length f. draw a rat diagram to illustrate image formation
2.an object is placed 10 cm from a lens of focal length 5cm.draw the ray diagrams to show the formation of image if the lens is
a .converging and
b .diverging

Answer 2

Explanation:

Ques: What is light?

Ans: light is a form of energy that provides the sensation of vision. Some common phenomenon associated with Lights are image formation by mirrors, the twinkling of stars, the beautiful colours of a rainbow, bending of light by a medium and so on.

Numerical:

1. A 2 cm tall object is placed perpendicular to the axis of the convex lens of focal length 10 cm. The distance of the object from the lens is 15 cm. Find the nature position and size of the image also find its magnification .

Hope this is helpful to you!