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Consider the following statements about good source of energy?
1. It would do a large amount of work per unit volume or mass.
2. It should be easily accessible.
Choose the correct option from the codes given below:
Which of the following is/are correct about wind energy:
1. It is an environment – friendly and efficient source of renewable energy.
2. The wind speed should also be higher than 25 km/h to maintain the required speed of the turbine.
3. It requires no recurring expenses for the production.
Choose the correct option from the codes given below:
Which of the following is/are correct about solar cooker:
1. Solar cookers achieve a higher temperature by using mirrors to focus the rays of
the Sun.
2. It works on the principle that a black surface absorbs more heat.
Choose the correct option from the codes given below:
Which of the following is/are correctly matched?
1. Tidal energy ————————————— gravitational pull of Moon.
2. Wave energy ————————————– potential energy of waves.
3. Ocean Thermal Energy ————- difference in temperature of water.
Choose the correct option from the codes given below: