V K Sally and S K Aggarwal Solutions for Chapter: Light, Exercise 4: EXERCISES
V K Sally Science Solutions for Exercise - V K Sally and S K Aggarwal Solutions for Chapter: Light, Exercise 4: EXERCISES
Attempt the practice questions on Chapter 15: Light, Exercise 4: EXERCISES with hints and solutions to strengthen your understanding. Learning Elementary Science for Class 7 solutions are prepared by Experienced Embibe Experts.
Questions from V K Sally and S K Aggarwal Solutions for Chapter: Light, Exercise 4: EXERCISES with Hints & Solutions
The ray of light may be returned by the second optical medium into the first optical medium with a change in angle. This phenomenon is known as:
A piece of transparent material which has one or two spherical surfaces, is called:
Light cannot pass through a bent rubber tube.
White light is composed of seven colours.
Bending of rays of light on passing through a medium is called dispersion.
The image of the object formed by a lens is real, inverted and enlarged. What is the kind of lens?
When Ranjit holds his finger about 6 cm from the mirrors A, B and C placed flat on a table. He observes (i) in mirror A, the image of finger is of same size, (ii) in mirror B, the image of the finger is enlarged, and (iii) in mirror C, the image of the finger is diminished. He wants to know the basic cause of such image formation, so he shares his observation with his friend Sunil. Sunil explains such things properly.
Answer the following question based on above information:
What are the values displayed by Sunil?
When Ranjeet holds his finger about 6 cm from the mirrors A, B and C placed flat on a table. He observes (i) in mirror A, the image of finger is of same size, (ii) in mirror B, the image of the finger is enlarged, and (iii) in mirror C, the image of the finger is diminished. He wants to know the basic cause of such image formation, so he shares his observation with his friend Sunil. Sunil explains such things properly.
Answer the following questions based on above information:
Find the name of mirrors A, B and C respectively according to their characteristics give one use of each mirrors.
