Question

give reasons: (i) Solar concentrates increase the efficiency of solar energy devices. (ii) hydrogen as a source of energy,is associated with many technical constraints​

Answer 1

HEY MATE HERE IS YOUR ANSWER:-

(i) Solar concentrates increase the efficiency of solar energy devices.

ANS.Solar cell performance is directly linked to the efficiency of converting sunlight into electricity. ... Conventional solar cells only absorb a narrow range of wavelengths very efficiently. The energy at other wavelengths is not absorbed at all or is converted into waste heat rather than electricity.

(ii) hydrogen as a source of energy,is associated with many technical constraints​

ANS.It’s a fact that hydrogen energy is a renewable resource because it’s abundantly available and its impacts hugely neglected. However, hydrogen companies will, in real sense, need other forms of non-renewable energy such as fossil (coal, natural gas, and oil) to separate it from oxygen. We may be able to minimize over-reliance on fossils fuels when we embrace hydrogen energy, but it will be daunting to get rid of it from the system.

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Answer 2

Reason on solar concentrates increase the efficiency of solar energy devices:

• The solar energy is the energy obtained from the sun in the high axis of prior.
• These solar energy has a different axis of radioactive ness.
• The solar energy to the earth is obtained in the form of different axis, in solar cells.
• This serves as the key for collecting the energy from the solar radiation.

Hydrogen as a source of energy, is associated with many technical constraints:

• The hydrogen is the better source of energy.
• This atom of hydrogen is concentrated in the formation of many many applications.
• And it has many technical content associated with it.

To know more;

In modern cities most people are carrying solar powered devices

True  or False

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It is difficult to use hydrogen as a source of energy. charcoal is consider better food then wood.

https://brainly.in/question/759515