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Yash dayal
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Yash dayal
Asked: January 23, 2025In: Class-11-Physics

When a body is heated, then maximum rise will be in its

Heated refers to the process of increasing the temperature of an object or substance. When something is heated, its particles gain energy, causing them to move faster. This can lead to changes in physical properties such as expansion or phase ...

class 11 physicsheatedthermal properties of matter
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Yash dayal
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Yash dayal
Asked: January 23, 2025In: Class-11-Physics

The resistance of tungsten filament at 150°C is 133 Ω. What will be its resistance at 500°C? The temperature coefficient of resistance of tungsten is 0.0045 per °C.

A tungsten filament is a thin wire made of tungsten metal used in light bulbs and other electrical devices. Tungsten has a high melting point and excellent conductivity, making it ideal for producing light when heated. It can withstand high ...

class 11 physicsthermal properties of mattertungsten filament
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Yash dayal
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Yash dayal
Asked: January 23, 2025In: Class-11-Physics

B and it contains half the amount of water in E. If both are at the same temperature, the water vapour in the containers will have pressure in the ratio of

Vapour is the gaseous state of a substance that is typically liquid or solid at room temperature. It forms when the substance evaporates or sublimates. Vapour can exist below its boiling point and can be seen as mist or steam ...

class 11 physicsthermal properties of mattervapour
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Yash dayal
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Yash dayal
Asked: January 23, 2025In: Class-11-Physics

Which of the following statement is true about the radiation emitted by human body?

Radiation is the transfer of energy through electromagnetic waves or particles. Unlike conduction and convection, radiation does not require a medium and can occur in a vacuum. It includes visible light, infrared radiation, ultraviolet rays, and other electromagnetic waves. Objects ...

class 11 physicsradiationthermal properties of matter
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Yash dayal
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Yash dayal
Asked: January 23, 2025In: Class-11-Physics

For a black body at temperature of 727°C, its radiating power is 60 W and temperature of surroundings is 227°C, then its radiating power will be

Radiating power refers to the amount of energy emitted by a body per unit area per unit time due to its temperature. It is governed by Stefan-Boltzmann law and depends on the body’s temperature and surface properties. A hotter object ...

class 11 physicsradiating powerthermal properties of matter
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