Black colour is a very good absorber of heat but a very poor reflector. So, it is . used to absorb the maximum amount of heat from the sunlight. It is used in solar heating devices to maximise the absorption of heat and to minimise heat loss due to reflection.
Black colour is a very good absorber of heat but a very poor reflector. So, it is . used to absorb the maximum amount of heat from the sunlight. It is used in solar heating devices to maximise the absorption of heat and to minimise heat loss due to reflection.
The limitations of the energy that can be obtained from the ocean tidal energy, wave energy and ocean thermal energy). (i) Tidal energy is not likely to be a potential source of energy in the future because there are very few sites around the world which are suitable for building tidal dams. (ii) WaRead more
The limitations of the energy that can be obtained from the ocean tidal energy, wave energy and ocean thermal energy).
(i) Tidal energy is not likely to be a potential source of energy in the future because there are very few sites around the world which are suitable for building tidal dams.
(ii) Wave energy would be a viable proposition only where waves are very strong.
(ii) The energy potential from the sea (tidal energy, wave energy and ocean thermal energy) is quite large, but efficient commercial exploitation is difficult.
The Sun rays fall on the equatorial region more intensively than on any other part of the Earth. Thus, the hot air of equatorial region, being lighter, rises upwards and cooler air from polar region starts blowing towards the equator to fill the space vacated by hot air. This moving air is called wiRead more
The Sun rays fall on the equatorial region more intensively than on any other part of the Earth. Thus, the hot air of equatorial region, being lighter, rises upwards and cooler air from polar region starts blowing towards the equator to fill the space vacated by hot air. This moving air is called wind. Therefore, Sun’s energy causes winds on the Earth.
Great Bear (Saptarishi) is also called as Ursa Major and resembles a large ladle or like a question mark. During spring and summer, it is above the horizon in the early part of the night. However, during autumn, it is easily visible.
Great Bear (Saptarishi) is also called as Ursa Major and resembles a large ladle or like a question mark. During spring and summer, it is above the horizon in the early part of the night. However, during autumn, it is easily visible.
It is a constellation in which the stars are arranged in a pattern which resembles Orion (Vyadha). It consists of three stars that lie close to each other in a line. The brightest star in the sky Sirius lies close to this constellation. It is visible during the winter season.
It is a constellation in which the stars are arranged in a pattern which resembles Orion (Vyadha). It consists of three stars that lie close to each other in a line. The brightest star in the sky Sirius lies close to this constellation. It is visible during the winter season.
मोसले (1911) के अध्ययन के आधार पर बताया गया कि परमाणू संख्या ही किसी तत्व का मौलिक गुण है न कि परमाणु भार। आधुनिक आवर्त नियम इसी परमाणु संख्या पर आधारित है। इस नियम के अनुसार, तत्वों के भौतिक एवं रासायनिक गुण उनकी परमाणु संख्या के आवर्त फलन होते हैं। आधुनिक आवर्त सारणी में तत्वों को इसी नियम के अनुसRead more
मोसले (1911) के अध्ययन के आधार पर बताया गया कि परमाणू संख्या ही किसी तत्व का मौलिक गुण है न कि परमाणु भार। आधुनिक आवर्त नियम इसी परमाणु संख्या पर आधारित है। इस नियम के अनुसार, तत्वों के भौतिक एवं रासायनिक गुण उनकी परमाणु संख्या के आवर्त फलन होते हैं। आधुनिक आवर्त सारणी में तत्वों को इसी नियम के अनुसार उनकी परमाणु संख्या के बढ़ते क्रम में सजाया गया है।
What is the use of the black painted surface in …
sanjay
Black colour is a very good absorber of heat but a very poor reflector. So, it is . used to absorb the maximum amount of heat from the sunlight. It is used in solar heating devices to maximise the absorption of heat and to minimise heat loss due to reflection.
Black colour is a very good absorber of heat but a very poor reflector. So, it is . used to absorb the maximum amount of heat from the sunlight. It is used in solar heating devices to maximise the absorption of heat and to minimise heat loss due to reflection.
See lessWhat are the limitations of the energy that can be …
sanjay
The limitations of the energy that can be obtained from the ocean tidal energy, wave energy and ocean thermal energy). (i) Tidal energy is not likely to be a potential source of energy in the future because there are very few sites around the world which are suitable for building tidal dams. (ii) WaRead more
The limitations of the energy that can be obtained from the ocean tidal energy, wave energy and ocean thermal energy).
See less(i) Tidal energy is not likely to be a potential source of energy in the future because there are very few sites around the world which are suitable for building tidal dams.
(ii) Wave energy would be a viable proposition only where waves are very strong.
(ii) The energy potential from the sea (tidal energy, wave energy and ocean thermal energy) is quite large, but efficient commercial exploitation is difficult.
What causes the wind to blow?
sanjay
The Sun rays fall on the equatorial region more intensively than on any other part of the Earth. Thus, the hot air of equatorial region, being lighter, rises upwards and cooler air from polar region starts blowing towards the equator to fill the space vacated by hot air. This moving air is called wiRead more
The Sun rays fall on the equatorial region more intensively than on any other part of the Earth. Thus, the hot air of equatorial region, being lighter, rises upwards and cooler air from polar region starts blowing towards the equator to fill the space vacated by hot air. This moving air is called wind. Therefore, Sun’s energy causes winds on the Earth.
See lessWhat is Great Bear (Saptarishi) ?
sanjay
Great Bear (Saptarishi) is also called as Ursa Major and resembles a large ladle or like a question mark. During spring and summer, it is above the horizon in the early part of the night. However, during autumn, it is easily visible.
Great Bear (Saptarishi) is also called as Ursa Major and resembles a large ladle or like a question mark. During spring and summer, it is above the horizon in the early part of the night. However, during autumn, it is easily visible.
See lessWhat is Orion (Vyadha) ?
sanjay
It is a constellation in which the stars are arranged in a pattern which resembles Orion (Vyadha). It consists of three stars that lie close to each other in a line. The brightest star in the sky Sirius lies close to this constellation. It is visible during the winter season.
It is a constellation in which the stars are arranged in a pattern which resembles Orion (Vyadha). It consists of three stars that lie close to each other in a line. The brightest star in the sky Sirius lies close to this constellation. It is visible during the winter season.
See lessआधुनिक आवर्त नियम क्या है?
sanjay
मोसले (1911) के अध्ययन के आधार पर बताया गया कि परमाणू संख्या ही किसी तत्व का मौलिक गुण है न कि परमाणु भार। आधुनिक आवर्त नियम इसी परमाणु संख्या पर आधारित है। इस नियम के अनुसार, तत्वों के भौतिक एवं रासायनिक गुण उनकी परमाणु संख्या के आवर्त फलन होते हैं। आधुनिक आवर्त सारणी में तत्वों को इसी नियम के अनुसRead more
मोसले (1911) के अध्ययन के आधार पर बताया गया कि परमाणू संख्या ही किसी तत्व का मौलिक गुण है न कि परमाणु भार। आधुनिक आवर्त नियम इसी परमाणु संख्या पर आधारित है। इस नियम के अनुसार, तत्वों के भौतिक एवं रासायनिक गुण उनकी परमाणु संख्या के आवर्त फलन होते हैं। आधुनिक आवर्त सारणी में तत्वों को इसी नियम के अनुसार उनकी परमाणु संख्या के बढ़ते क्रम में सजाया गया है।
See lessजब प्रकाश की किरण हवा से कांच में प्रवेश करती …
sanjay
Correct answer ख
Correct answer ख
See lessजब प्रकाश की किरण हवा से कांच में प्रवेश करती …
sanjay
अभिलंब के निकट मुड जाती है ।
अभिलंब के निकट मुड जाती है ।
See lessचिप्स की थैली में कौन-सी गैस भरी होती है, और …
sanjay
चिप्स की थैली में नाइट्रोजन गैस भरी होती है ।
चिप्स की थैली में नाइट्रोजन गैस भरी होती है ।
See lessआनंद मठ उपन्यास के लेखक का नाम बताएं? A. शरत …
sanjay
B
B
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