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In order that the heat flows from one part of a solid to another part, what is required?
To cause heat to move from one end of a solid to another, there must exist a temperature gradient. This would mean that two parts of the solid must differ in temperature as heat flows from the region with higher temperature towards the region of lower temperature. Click here for more: https://www.tiRead more
To cause heat to move from one end of a solid to another, there must exist a temperature gradient. This would mean that two parts of the solid must differ in temperature as heat flows from the region with higher temperature towards the region of lower temperature.
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If a body is heated from 27° C to 92.7 °C, then the ratio of their energies of radiations emitted will be
The energy radiated by a body is given by the Stefan-Boltzmann law: E ∝ T⁴ where E is the energy emitted and T is the temperature in Kelvin. To find the ratio of the energies emitted at two temperatures, we use the formula: (E₂ / E₁) = (T₂ / T₁)⁴ First, convert the temperatures from Celsius to KelviRead more
The energy radiated by a body is given by the Stefan-Boltzmann law:
E ∝ T⁴
where E is the energy emitted and T is the temperature in Kelvin.
To find the ratio of the energies emitted at two temperatures, we use the formula:
(E₂ / E₁) = (T₂ / T₁)⁴
First, convert the temperatures from Celsius to Kelvin:
T₁ = 27 + 273 = 300 K T₂ = 92.7 + 273 = 365.7 K
Now, find the ratio:
(E₂ / E₁) = (365.7 / 300)⁴ ≈ (1.219)⁴ ≈ 2.1⁴ ≈ 16
So, the ratio of the energies emitted is 1 : 16.
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A perfectly black body is one whose
A perfectly black body is one whose absorptive power is 1. This means it absorbs all the radiation incident upon it, without reflecting or transmitting any. A black body also emits radiation at maximum efficiency for any given temperature. Click here for more: https://www.tiwariacademy.com/ncert-solRead more
A perfectly black body is one whose absorptive power is 1. This means it absorbs all the radiation incident upon it, without reflecting or transmitting any. A black body also emits radiation at maximum efficiency for any given temperature.
Click here for more:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-10/
What plants are found in the Chilkigarh Kanak Durga Sacred Grove and who protects them?
The Chilkigarh Kanak Durga Sacred Grove in West Bengal is known for its unique medicinal plants, which are deeply connected to traditional practices. The local community safeguards the grove, ensuring these plants are protected for their ecological and cultural significance. Their efforts preserve bRead more
The Chilkigarh Kanak Durga Sacred Grove in West Bengal is known for its unique medicinal plants, which are deeply connected to traditional practices. The local community safeguards the grove, ensuring these plants are protected for their ecological and cultural significance. Their efforts preserve biodiversity while maintaining the grove’s role in traditional medicine and rituals. This highlights the critical role of community involvement in conserving sacred and ecologically vital spaces.
See lessHow do people in Ziro Valley, Arunachal Pradesh, practice sustainable farming?
Ziro Valley in Arunachal Pradesh is famous for its unique farming system, where rice and fish are cultivated together in flooded fields. This integrated practice conserves water, promotes biodiversity, and enhances soil fertility. The fish feed on pests, reducing the need for chemical pesticides. ThRead more
Ziro Valley in Arunachal Pradesh is famous for its unique farming system, where rice and fish are cultivated together in flooded fields. This integrated practice conserves water, promotes biodiversity, and enhances soil fertility. The fish feed on pests, reducing the need for chemical pesticides. This sustainable method ensures a balanced ecosystem and supports the local community by providing food security, showcasing the harmony between traditional farming practices and biodiversity conservation.
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