Multiple choice

Which of the following statements are correct?

  1. Solar power can be harnessed only if sun's rays are concentrated by using a series of mirrors.
  2. Solar energy can be tapped for generating electricity, heating homes, providing hot water, etc.
  3. Wind mills have been used by man for grinding food grains.
  4. Geothermal energy can be used for generation of electricity.

  1. Only 2 and 4

  2. Only 2, 3 and 4

  3. Only 1, 2 and 4

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

All the above given statements are perfectly correct. Use of a series of mirrors is indispensable for harnessing solar power. Solar energy can be tapped for generating electricity, heating homes, providing hot water, etc. Wind mills have been used by man for grinding food grains. Geothermal energy can be used for generation of electricity.

Keep practicing — related questions