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Yogita Ingle 5 years, 4 months ago
| Conduction | Convection | Radiation |
| In conduction, heat transfer takes place between objects by direct contact. | In convection, the heat transfer takes within the fluid. | In radiation, heat transfer occurs through electromagnetic waves without involving particles. |
| The heat transfer takes place due to the difference in temperature. | The heat transfer occurs due to the difference in density. | The heat transfer occurs in all objects with a temperature greater than 0 K. |
| The heat transfer in conduction is slow | The heat transfer in convection is faster. | The heat transfer in radiation is the fastest. |
| The heat transfer occurs through a heated solid object. | The heat transfer occurs through intermediate objects. For example, heat transfer between air and water. | The heat transfer occurs through electromagnetic waves. |
| It does not follow the law of reflection and refraction. | It does not follow the law of reflection and refraction. | It follows the law of reflection and refraction. |
Posted by Sachi Chauhan 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
In 1878 William Crooks carried out discharge tube experiments and discovered new radiations and called them cathode rays. Since these rays travel from the cathode towards anode. Later, J.J Thomson studied the characteristics of cathode rays and concluded that cathode rays are negatively charged particles, now called electrons. The name electron was given by Johnson Stoney.
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Sachi Chauhan 5 years, 4 months ago
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☀️ Sunshine ☀️ 5 years, 4 months ago
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Amalandu Chakma 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
W izard Dance is a Pre-historic painting drawn on one of the Cave walls of Bhimbetka. In this painting a special dance celebration of aboriginal people is painted. All the three figures are shown in full of rythm and movement.
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Akansha Bhatnagar 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
The poet compares the mortal nature of human beings with the eternal nature of the sea or natural objects. With the passage of time, the poet’s mother died but the vast sea has remained as it was since the photograph was taken.
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Yogita Ingle 5 years, 4 months ago
An investment is an asset or item accrued with the goal of generating income or recognition. In an economic outlook, an investment is the purchase of goods that are not consumed today but are used in the future to generate wealth. In finance, an investment is a financial asset bought with the idea that the asset will provide income further or will later be sold at a higher cost price for a profit.
Investment is elucidated and defined as an addition to the stockpile of physical capital such as:
- Machinery
- Buildings
- Roads etc.,
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Yogita Ingle 5 years, 4 months ago
Mrs Dorling suggested to the narrator's mother that she should store her belongings at a safer place. She wanted to save all her nice things.
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༒Rolf Nader༒࿐ ࿐Islam༒࿐ 5 years, 4 months ago
Posted by Sachi Chauhan 5 years, 5 months ago
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Sachi Chauhan 5 years, 4 months ago
Yogita Ingle 5 years, 4 months ago
A lichen, or lichenized fungus, is actually two organisms functioning as a single, stable unit. Lichens comprise a fungus living in a symbiotic relationship with an alga or cyanobacterium (or both in some instances). There are about 17,000 species of lichen worldwide.
Posted by Suriya Vector 5 years, 5 months ago
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Yogita Ingle 5 years, 4 months ago
ABC Nagar,
XYZ Road,
New Delhi.
Date :- 30th December 2019.
Dear Aastha,
I hope this letter finds you in good health. I’m writing this letter to you so that I could share with you my experience in a rescue operations in Bihar floods where I volunteered. The flooding occurred because of the torrential rain which continued for about 64 hours, and the state capital Patna was worst affected. Many areas were water logged with about six feet of water, along with electricity failures and shortage of drinking water. The people were taken out of their submerged homes. Many netizens came forward to arrange eatables for the people and local fishermen were hired for boat services. I was also among the people arranging food and other facilities for people. It was really a horrible scene. But I feel satisfied to do my bit.
Give my warm regards to uncle and aunty and lots of love to Tina.
Your loving friend,
Puja.
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Gaur Saab?? 5 years, 4 months ago
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