CLASS 7 Chapter 15 Light

Short answer type question

 

Question 1. Show that light travels in a straight line with an example.

Question 2. What do you understand by the reflection of light?

Question 3. Which type of image is called an erect image?

Question 4. Verify that the distance between the image and the mirror is the same as the distance between the mirror and the object.

Question 5. Why the word AMBULANCE is written in a strange manner in vehicles?

Question 6. What type of image is formed by the convex mirror and concave mirror?

Question 7. What do you understand by the plane mirror?

Question 8. Write the difference between a convex lens and a concave mirror.

Question 9. Write the uses of concave mirrors.

Question 10. What is a magnifying glass? which lens is used in it.

Question 11. What do understand by virtual images?

Long answer type questions

 

Question 1. Explain the following

  1. Spherical mirror
  2. Concave mirror
  3. Convex mirror

Question 2. Write the characters of the image formed convex lens.

Question 3. Why it is dangerous to look through a lens at the sun?

Question 4. Show that white light is composed of seven colours.