12. Light and sound

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12. Light and sound Fill in the blanks.  1. Objects which cannot give out their own light are called Non - luminous.  2. Trandparent   object allow light to pass through them completely.  3. Reflection   is bouncing back of light from a smooth shiny surface.  Write true or false.  1. Sound does not require any medium to travel. (F)   2.The sound of loudspeaker is an unpleasant sound. (T)  3.sound travels through air in the form of particles. (F)  Let us practise 1. Fill in the blanks.  a. Noise is produced by irregular    sound waves.  b. Sun is the main source of heat and light on earth.  c. When light hits a surface and cannot pass through it, the surface is called opaque.  d. Sound is produced due to vibration of objects.  2 . Write 'T' for true and 'F' for false.  a. Honking car is an example of a pleasant sound. (F)  b. Light cannot bend around the cornera. (T)   c. Wat...
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Gk 46.Namaste India 3rd class

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46. Namste India
Class3 gk questions 

Name the city with the help of the words given below.
1.Gateway of India
Ans.Mumbai

2.Garden city 
Ans. Bengaluru 
3.Golden temple
Ans.Amritsar
4.Taj Mahal
Ans.Agra
5.India Gate
Ans. Delhi
6.Charminar
Ans.Hyderabad
7.pink city
Ans Jaipur
8.Howrah Bridge
Ans.kolkata

gk questions 
gk questions with answer
gk questions in english gk questions

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