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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Ambani children

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Mukesh Ambani, the enterprise magnate and chairman of Reliance Industries, has three children: Akash, Isha, and Anant.

- *Akash Ambani*: Akash is the eldest son of Mukesh Ambani. He is concerned in the household commercial enterprise and serves as the Chief Strategy Officer of Jio Infocomm ¹.
- *Isha Ambani*: Isha is the solely daughter of Mukesh Ambani. She is additionally worried in the household enterprise and serves as the Director of Reliance Jio Infocomm and Reliance Retail Ventures ¹.
- *Anant Ambani*: Anant is the youngest son of Mukesh Ambani. He has been concerned in the household enterprise and has additionally been worried in quite a number philanthropic things to do ¹.

All three Ambani teenagers have been skilled at pinnacle establishments round the world. Akash and Isha each attended Brown University in the US, whilst Anant attended Brown University as properly ¹.
เคฐिเคฒाเคฏंเคธ เค‡ंเคกเคธ्เคŸ्เคฐीเคœ เค•े เคšेเคฏเคฐเคฎैเคจ เค”เคฐ เคฌिเคœเคจेเคธ เคฎैเค—्เคจेเคŸ เคฎुเค•ेเคถ เค…ंเคฌाเคจी เค•े เคคीเคจ เคฌเคš्เคšे เคนैं: เค†เค•ाเคถ, เคˆเคถा เค”เคฐ เค…เคจंเคค।

- *เค†เค•ाเคถ เค…ंเคฌाเคจी*: เค†เค•ाเคถ เคฎुเค•ेเคถ เค…ंเคฌाเคจी เค•े เคธเคฌเคธे เคฌเคก़े เคฌेเคŸे เคนैं। เคตे เคชाเคฐिเคตाเคฐिเค• เคต्เคฏเคตเคธाเคฏ เคฎें เคถाเคฎिเคฒ เคนैं เค”เคฐ เคœिเคฏो เค‡เคจ्เคซोเค•ॉเคฎ เค•े เคฎुเค–्เคฏ เคฐเคฃเคจीเคคि เค…เคงिเค•ाเคฐी เค•े เคฐूเคช เคฎें เค•ाเคฐ्เคฏ เค•เคฐเคคे เคนैं।

- *เคˆเคถा เค…ंเคฌाเคจी*: เคˆเคถा เคฎुเค•ेเคถ เค…ंเคฌाเคจी เค•ी เค‡เค•เคฒौเคคी เคฌेเคŸी เคนैं। เคตे เคชाเคฐिเคตाเคฐिเค• เคต्เคฏเคตเคธाเคฏ เคฎें เคญी เคถाเคฎिเคฒ เคนैं เค”เคฐ เคฐिเคฒाเคฏंเคธ เคœिเคฏो เค‡เคจ्เคซोเค•ॉเคฎ เค”เคฐ เคฐिเคฒाเคฏंเคธ เคฐिเคŸेเคฒ เคตेंเคšเคฐ्เคธ เค•ी เคจिเคฆेเคถเค• เค•े เคฐूเคช เคฎें เค•ाเคฐ्เคฏ เค•เคฐเคคी เคนैं।

- *เค…เคจंเคค เค…ंเคฌाเคจी*: เค…เคจंเคค เคฎुเค•ेเคถ เค…ंเคฌाเคจी เค•े เคธเคฌเคธे เค›ोเคŸे เคฌेเคŸे เคนैं। เคตे เคชाเคฐिเคตाเคฐिเค• เคต्เคฏเคตเคธाเคฏ เคฎें เคถाเคฎिเคฒ เคฐเคนे เคนैं เค”เคฐ เค•เคˆ เคชเคฐोเคชเค•ाเคฐी เค•ाเคฐ्เคฏों เคฎें เคญी เคถाเคฎिเคฒ เคฐเคนे เคนैं।

เคคीเคจों เค…ंเคฌाเคจी เค•िเคถोเคฐ เคฆुเคจिเคฏा เคญเคฐ เค•े เคถीเคฐ्เคท เคธंเคธ्เคฅाเคจों เคฎें เคช्เคฐเคถिเค•्เคทिเคค เคนैं। เค†เค•ाเคถ เค”เคฐ เคˆเคถा เคฆोเคจों เคจे เค…เคฎेเคฐिเค•ा เคฎें เคฌ्เคฐाเค‰เคจ เคฏूเคจिเคตเคฐ्เคธिเคŸी เคฎें เคชเคข़ाเคˆ เค•ी เคนै, เคœเคฌเค•ि เค…เคจंเคค เคจे เคญी เคฌ्เคฐाเค‰เคจ เคฏूเคจिเคตเคฐ्เคธिเคŸी เคฎें เคชเคข़ाเคˆ เค•ी เคนै।

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