Tag: solar energy

Questions Related to solar energy

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

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

  1. Moon

  2. Solar system

  3. Sun

  4. Stars

Show answer
Correct Option: C
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.

The main source of heat is

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

  1. The sun

  2. The stars (Excluding the sun)

  3. The interior of the earth

  4. Chemical reactions

  5. Electricity

Show answer
Correct Option: A
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

The temperature of core of the sun is in the range of

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

  1. ${1,56,000}^{o}C$

  2. ${15,60,000}K$

  3. ${15,60,000}^{o}C$

  4. $1,56,00,000K$

Show answer
Correct Option: D

Sun produces heat and light energy by

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

  1. nuclear fusion of hydrogen atoms into helium atoms

  2. nuclear fission of ${H} _{2}$ atoms into helium atoms

  3. nuclear fission of $He$ atoms into ${H} _{2}$ atoms

  4. nuclear fusion of $He$ atoms into ${H} _{2}$ atoms

Show answer
Correct Option: B

Sun contains more than __________ of the total mass of the solar system.

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

  1. $90$%

  2. $65$%

  3. $46$%

  4. $99.8$%

Show answer
Correct Option: D

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

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

  1. $4$ lakh million tons

  2. $4$ million tons

  3. $4$ lakh tons

  4. $40$ lakh tons

Show answer
Correct Option: B

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

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

  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

Show answer
Correct Option: A


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?

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

  1. Geothermal energy

  2. Wind Energy

  3. Nuclear energy

  4. BioMass

Show answer
Correct Option: C
Explanation:

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

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 $-(in \, W/m^2)$

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

  1. $1.4 \times 10^4$

  2. $2.8 \times 10^5$

  3. $4.2 \times 10^6$

  4. $5.6 \times 10^7$

Show answer
Correct Option: D
Explanation:

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

Which of the following is an example of fossil fuel?

evs solar energy fuels and fossil fuels solar energy and its applications electric energy generation and environment

  1. Oxygen gas

  2. Hydrogen Gas

  3. Natural gas

  4. Producer gas

Show answer
Correct Option: C
Explanation:

Fuel that is formed from the decay of the dead plants and animals millions of years ago is called fossil fuel. Examples include coal, petroleum, natural gas.