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Chapters
2: Plants: Structure and Function
3: Properties of Natural Resources
4: Nutrition in Living Organisms
5: Food Safety
6: Measurement of Physical Quantities
7: Motion, Force and Work
8: Static Electricity
9: Heat
10: Disaster Management
11: Cell Structure and Micro-organisms
12: The Muscular System and Digestive System in Human Beings
13: Changes – Physical and Chemical
14: Elements, Compounds and Mixtures
15: Materials We Use
16: Natural Resources
▶ 17: Effects of Light
18: Sound: Production of Sound
19: Properties of a Magnetic Field
20: In the World of Stars
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Solutions for Chapter 17: Effects of Light
Below listed, you can find solutions for Chapter 17 of Maharashtra State Board Balbharati for General Science [English] 7 Standard.
Balbharati solutions for General Science [English] 7 Standard 17 Effects of Light Exercise [Page 117]
When the beams from the headlights of a car fall on an object in the night, the shadows called ______ and ______ can be seen.
During a lunar eclipse, the shadow of the _____ falls on the _____.
During a solar eclipse, the shadow of the _____ falls on the _____.
Various shades of colour are seen in the sky at sunrise and sunset due to ______.
Give reasons:
Space beyond the earth's atmosphere appears dark.
Give reasons:
We are able to read while sitting in the shade.
Give reasons:
We should not observe the solar eclipse with naked eyes.
Give some examples of scattering of light that we come across in day-to-day life.
Why is the shadow of a bird flying high not seen on the earth?
Why is a penumbra not obtained from a point source?
Answer the following question in your own words:
What is meant by the scattering of light?
Answer the following question in your own words:
Does the shadow really vanish in the zero shadow condition?
Answer the following question in your own words:
Will the laser beam be seen if it passes through a glass box which contains a lighted incense stick?
Discuss and write:
Write a science-based paragraph on 'What if the sun did not rise?'
Discuss and write:
What efforts will you make to remove the misconceptions about eclipses?
Discuss and write:
Various eclipses and the conditions during the period.
Explain the difference:
Point sources and extended sources of light.
Explain the difference:
Umbra and penumbra.
Solutions for 17: Effects of Light
Balbharati solutions for General Science [English] 7 Standard chapter 17 - Effects of Light
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Concepts covered in General Science [English] 7 Standard chapter 17 Effects of Light are Experiment of Scattering of Light, Formation of Shadow, Zero Shadow Day, Effects of Light, Eclipse - an Astronomical Event.
Using Balbharati General Science [English] 7 Standard solutions Effects of Light exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Balbharati Solutions are essential questions that can be asked in the final exam. Maximum Maharashtra State Board General Science [English] 7 Standard students prefer Balbharati Textbook Solutions to score more in exams.
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