Solar Energy

Q.

State two advantages and two limitations of producing electricity from solar energy.

Q.

What is solar energy ? How is the solar energy used to generate electricity in a solar power plant ?

Q. The Earth receives heat from the Sun through the process of_______.

1. Conduction
2. Convection
3. Radiation
4. Evaporation

Q.

The average amount of Solar energy reaching the upper atmosphere of earth per second on an area of $1m^2$ is called ___.

Q.

Which of the following options is not an advantage of a solar panel?

1. Does not require any maintenance

2. Last over a long period

3. High efficiency of conversion of solar energy

4. Do not cause any pollution

Q.

Solar energy reaching the earths surface is mostly in the form of

1. Heat rays only

2. Visible light only

3. Heat and visible light

4. None of these

Q.

In a solar cell panel, _______ energy is converted into _____ energy.

Q.

________is a combination of heat and light energy.

Q.

Pick the incorrect statement about solar cells/panel.

1. gold

2. copper

3. silver

4. nickel

Q.

In addition to visible light, which other type of radiations are emitted by a 100 W electric bulb when it is glowing?

Q.

The Sun has been radiating an enormous amount of energy at the present rate for nearly ____ years and will continue radiating at that rate for about ____ years more.

Q. The temperature difference between the oceanic layers causes heat energy to flow among them, in a form known as ________ energy.

1. wave
2. ocean thermal
3. geothermal
4. tidal

Q. Scientists who study universe are known as

1. Astrologers
2. Geologists
3. Astronomers
4. Meteorologists

Q. Solar energy can be obtained from:

1. Radiation of sun incident on earth’s surface
2. Solar rays reflected by moon towards earth
3. Burning of coal to produce temperature comparable to sun’s
4. None of these

Q. The approximate value of solar constant is ___.

1. $1.4kW/m^2$
2. $1.4kW/min$
3. $1.4kJ/m^2$
4. $1.4kW/mi{n}^2$

Q.

Why are the solar cell panels not used on large scale?

Q. Planet 'X' is cold and dry planet having two satellites- Phobos and Deimos. Its 95% atmosphere is made up of carbon dioxide.
What is 'X' in the above paragraph?

1. Mars
2. Mercury
3. Venus
4. Saturn

Q.

What is the limitations of solar energy

Q. Write 3 advantages and 3 disadvantages of using solar panels for producing electricity. $\left[6\text{marks}\right]$