Environmental Studies · Physics

Solar Radiation and Energy

876 Questions

Enhance your general science knowledge with these questions on solar radiation and energy. The topics span solar thermal power plants, photovoltaic devices, and the sun's energy output. This material is useful for environmental studies and physics.

Solar energy conversionSun luminosity and compositionAtmospheric reflectionSolar thermal technology

Solar Radiation and Energy Questions

Multiple choice evs sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources

Solar energy is the .......... source of energy.

  1. Conventional

  2. Non conventional

  3. Man made

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Energy generated by using wind, tides, solar, geothermal heat, and biomass is known as non-conventional energy. Solar energy is an inexhaustible non-conventional resource. There are three methods of harnessing solar energy- direct heating (e.g., solar cookers), thermoelectric conversion or solar thermal power plants, for example, steam generation and photovoltaic conversion.

Thus, the correct answer is option B.

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

Why is the Sun important for us?

  1. It is the main source of light and heat.

  2. It is the source of energy.

  3. Its gravitational force keeps all planets and other heavenly bodies in place.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sun is very important to us as it is the main source of light and heat, i.e, the main source of energy. Besides, its gravitational force keeps all planets and other heavenly bodies in place.

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies
Inside the Sun, _______ reactions take place at high temperature and enormous pressure. Fill in the blank

  1. nuclear fusion

  2. nuclear fission

  3. catalyze

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nuclear fusion means merging of separate elements as a unified whole to form heavy nuclei resulting in release of enormous amount of energy.

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

From which part of Sun does the energy from nuclear fusion is generated?

  1. Core

  2. Radiative Zone

  3. Convective Zone

  4. From both B and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Central region of the Sun is called the core. Core is where the nuclear reaction takes place. 

Core is the region where the energy from nuclear fusion is generated.

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

What is the Sun made of?

  1. 94% hydrogen, 6% helium, 0.16% other materials

  2. 94% hydrogen, 6% helium, 0.13% other materials

  3. 99% hydrogen, 6% helium, 0.11% other materials

  4. 94% hydrogen, 6% helium, 0.11% other materials
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sun is a large mass of gases. Two prominent gases forming the Sun are hydrogen and helium. Other gases such as carbon, nitrogen forms the trace amount.

The sun is made of 94% hydrogen, 6% helium, 0.16% other materials.

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

The following is (are) true about Sun.

  1. It is made up of gases

  2. It has its own heat and light

  3. Sun is a star

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The sun is a big ball of gas and plasma. Most of the gas 91 percent is hydrogen. It is converted into energy in the sun's core. The energy moves outward through the interior layers, into the sun's atmosphere, and is released into the solar system as heat and light.

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

A solar flare occurs when .......... energy that has built up in the solar atmosphere is suddenly released.

  1. heat

  2. light

  3. electromagnetic

  4. magnetic
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solar flares are sudden, intense eruptions of radiation from the sun's surface, caused by the rapid release of magnetic energy that has built up in the solar atmosphere.

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

Sun spots are the areas to which the energy produced in the sun's core is unable to reach due to

  1. some unknown reasons

  2. inhibitions by the lower layers

  3. inhibition by the strong magnetic field to the convective motion of the evergy

  4. inhibition by the strong gravitational field to the convective motion of the evergy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ans: inhibition by strong magnetic field to the convective motion of the energy

Multiple choice physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

Which is the part of sun where the energy is transported from superhot interior to cold outer layers by photons?

  1. Core

  2. Radiative Zone

  3. Convective zone

  4. None
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Radiative zone lies between the core and the convective zone. In radiative zone, energy resulted from the nuclear fusion in the core travels upwards by photons.

Multiple choice biology transport in plants diffusion transport in vascular plants types of transport

Choose the correct answers from the alternatives given.
The energy source that drives the upward flow of water is

  1. Light

  2. Glucose

  3. ATP

  4. Solar heat
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solar heat causes the evaporation of water from the surface of the leaves in form of water vapour through small openings called stomata. This loss is known as transpiration. Due to the loss of water, water stress condition is created that forces the upward movement of water from the soil towards the shoot system. This water is then again distributed to various plant parts.

Hence, the correct answer is 'Solar heat'.

Multiple choice physics life cycle of stars evolution and end stages of stars the stars stars

Most stars give off energy

  1. By nuclear fission or elements heavier than carbon.

  2. By the proton cycle or the carbon cycle.

  3. Drawing it from the virtual vacuum through a black hole.

  4. By burning hydrogen and giving off water vapor.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The protonproton chain reaction is one of two known sets of nuclear fusion reactions by which stars convert hydrogen to helium. Using this method, the stars convert particles to energy