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

Sun’s halo is produced by the refraction of light in

  1. water vapours in Stratus clouds

  2. ice crystals in Cirro-Cumulus clouds

  3. ice crystals in Cirrus clouds

  4. dust particles in Stratus clouds
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The ice crystals suspended in Cirrus clouds (5-10 km) in the upper atmosphere are responsible for sun’s halo.

Multiple choice physics heat and energy

The earth's transparent for the ________ radiations of short wavelengths coming from the sun.

  1. Infrared

  2. UV

  3. X ray

  4. All
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Process of warming of planet's surface and its lower atmosphere by the absorption of infrared radiations of long wavelength given out from the surface of a planet is known as green house effect.  In 1824, Joseph Fourier discovered the green house effect. The earth's transparent for the infrared radiations of short wavelengths coming from the sun. The high energy radiations such as X rays, gamma rays, UV rays are absorbed by the ozone layer while the low energy radiations namely infrared radiations of long wavelength and radio waves are reflected back into the space.

Multiple choice

The sun's energy

  1. changes daily

  2. powers the water cycle

  3. is bright
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The sun provides the thermal energy necessary to drive the water cycle, including evaporation and the movement of air masses. Without this energy input, the cycle would not function.

Multiple choice

How do plants use the sun's energy?

  1. Move water up the stem

  2. Make sugar in their leaves

  3. Make pollen in their flower

  4. Reproduce
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Photosynthesis is the process by which plants use sunlight to convert water and carbon dioxide into glucose, which is a form of sugar used for energy.

Multiple choice

All energy begins where?

  1. the sun

  2. Atlanta

  3. in water

  4. under a rock
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The sun is the primary source of energy for almost all life on Earth. It provides the light energy that plants convert into chemical energy.

Multiple choice physics search of life outside earth space research and satellites artificial satellites space missions and artificial satellites

The Chandrayaan was mainly powered by its solar array, which included one solar panel covering a total area of 2.15 x 1.8 m generating 750 W of peak power, which was stored in a_____________ for use during eclipses.

  1. cadmium zinc battery

  2. lead ion battery

  3. 36 Ah lithium-ion battery

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

The Chandrayaan was mainly powered by its solar array, which included one solar panel covering a total area of 2.15 x 1.8 m generating 750 W of peak power, which was stored in a 36 Ah lithium-ion battery for use during eclipses.

Multiple choice remote sensing remote sensing eyes in the sky and data analysis mapping skills geography

After energy has been emitted by the target, the sensor collects and records the _____.

  1. Sunrays

  2. Objects on Earth

  3. Electromagnetic radiation

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Once the energy makes its way to the target through the atmosphere, it interacts with the target depending on the properties of both the target and the radiation.
  • After the energy has been scattered by, or emitted from the target, we require a sensor (remote - not in contact with the target) to collect and record the electromagnetic radiation.
Multiple choice physics sources of energy wave energy tidal energy wave power and tidal power

What is known as Ocean thermal energy?

  1. The Sun's heat warms the surface water a lot more than the deep ocean water which creates ocean's naturally available temperature gradient.

  2. The Moon's heat warms the surface water a lot more than the deep ocean water which creates ocean's naturally available temperature gradient.

  3. The Solar cell's heat warms the surface water a lot more than the deep ocean water which creates ocean's naturally available temperature gradient.

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

Temperature gradient of the water with deep ocean being cold and tropical surface water being warm due to the Sun's heat is the ocean thermal energy.

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

After the initial contraction and when the temperature rises high enough, energy is radiated from the surface in the form of:

  1. short-wavelength red light

  2. short-wavelength blue light

  3. long-wavelength red light

  4. long-wavelength orange light
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

As a protostar contracts, it heats up and begins to radiate energy. Because the surface temperature is relatively low compared to mature stars, the radiation is primarily in the infrared or long-wavelength red spectrum.