Tag: solar energy

Quizzes (5) Questions (61)

Questions Related to solar energy

Multiple choice evs solar energy water cycle earth's energy budget solar energy and its applications

Energy from various sources is considered to have been derived from the :

  1. Moon

  2. Solar system

  3. Sun

  4. Stars
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sun is the source of almost all the energies in our Earth. Plants make food using sunlight, the food that we get from plants and animals also has its prime source as sunlight. The fossil fuels that we use in our daily life comes from dead plants and animals which again have their source as solar energy. The wind that blows is due to heat absorbed by the atmosphere from the sunlight.

Multiple choice evs solar energy water cycle earth's energy budget solar energy and its applications

The main source of heat is

  1. The sun

  2. The stars (Excluding the sun)

  3. The interior of the earth

  4. Chemical reactions

  5. Electricity
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Most of the heat energy available on the earth surface comes from the Sun in the form of electromagnetic radiation. 
Sun is the main source of heat on the earth.
Option A
Multiple choice evs solar energy water cycle earth's energy budget solar energy and its applications

Sun loses approximately a weight of ________ every second which is the amount of ${H} _{2}$ gas that the sun turns into energy.

  1. $4$ lakh million tons

  2. $4$ million tons

  3. $4$ lakh tons

  4. $40$ lakh tons
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Sun loses approximately 4 million tons of mass every second as it converts hydrogen into helium through nuclear fusion.

Multiple choice evs solar energy water cycle earth's energy budget solar energy and its applications

The correct order of spatial location of different layer of sun are

  1. core-radiative zone-convective zone-photosphere-chromosphere-transition region

  2. core-convective zone-chromosphere-photosphere-radiative zone

  3. core-convective zone-photosphere-chromosphere-convective zone-radiative zone

  4. core-radiative zone-convective zone-chromosphere-convective zone-photosphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The correct spatial order from the center outward is: Core, Radiative Zone, Convective Zone, Photosphere, Chromosphere, and Transition Region.

Multiple choice evs solar energy water cycle earth's energy budget solar energy and its applications


Most of the sources of energy we use represent stored solar energy. Which of the following is not ultimately derived from the Sun's energy?

  1. Geothermal energy

  2. Wind Energy

  3. Nuclear energy

  4. BioMass
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Nuclear energy is not ultimately derived from the Sun's energy as uses radioactive substances to produce energy.

Multiple choice evs solar energy water cycle earth's energy budget solar energy and its applications

The sun radiates electromagnetic energy at the rate of $3.9 \times 10^{26}W$. Its radius is $6.96\times 10^8m$.The intensity of sun light at the solar surface will be $-(in \, W/m^2)$

  1. $1.4 \times 10^4$

  2. $2.8 \times 10^5$

  3. $4.2 \times 10^6$

  4. $5.6 \times 10^7$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

$I=\frac { P }{ { 4\pi { R^{ 2 } } } } =\frac { { 3.9\times { { 10 }^{ 26 } } } }{ { 4\times 3.14\times { { \left( { 6.96\times { { 10 }^{ 8 } } } \right)  }^{ 2 } } } } =5.6\times { 10^{ 7 } }w/{ m^{ 2 } }$