Question

please provide some questions of chapter light class 10th​

Answer 1

Answer:

1) On what factors does the refractive index of medium depend?

2) The focal length of a convex lens is 25cm. What is its power?

3) Explain power of lens. Also state its SI unit. Define 1 Dioptre.

4) Define refraction of light.

5) Explain refractive index with the appropriate equation.

6) What is the nature, size and position of the image formed by a convex lens for various positions of the object:

a. At Infinity

b. Beyond 2F1

c. At 2F1

d. Between F1 and 2F1

e. At focus F1

f. Between focus F1 and optical centre O.

7) Explain Linear magnification of a spherical lens.

8) Define the following:

a. Laws of refraction of light.

b. Mirror Formula.

9) Which type of phenomenon (reflection or refraction) occurs when light falls on:

i. A highly polished surface like a mirror.

ii. A transparent medium like glass or water.

$\red{Hope\ Its\ Clear}$

Answer 2

Explanation:

Light Reflection and Refraction Chapter Wise Important Questions Class 10 Science. A concave lens has focal length of 20 cm. At what distance from the lens a 5 cm tall object be placed so that it forms an image at 15 cm from the lens? An object 50 cm tall is placed on the principal axis of a convex lens.