Download App

Sources of Energy — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceSources of Energy5 Marks
Question
State the advantages and disadvantages of using solar cells.
✓

Answer

Advantage of solar cell.
  1. They have no moving parts and require no maintenance.
  2. They can be set up in remote and inaccessible areas.
Disadvantage of solar cell.
  1. They are very expensive.
  2. They are less efficient. They can convert only about 25% of light falling on them into electricity.
  3. They cannot work during night time.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the following questions: [5 M]" from Sources of Energy→Sources of Energy — all question types→Science STD 10 question papers→Maharashtra Board STD 10 question papers→Maharashtra Board question paper generator→

Similar questions

Write short notes: Polymerization.
→
Some hunters are roaming in the plush green forest of Africa. They spot a deer and kill it. They decide to roast the deer there and then and eat it. When the hunters had just finished enjoying the feast of roasted deer, a lion attacks them. The lion kills one of the hunters and eats his flesh.
  1. Write a food chain which provides food to lion in this case.
  2. Which animal (other than deer) the lion could look for food if he did not get the hunter as prey?
  3. Which other animal in the forest could have been in place of lion?
  4. How does the above food chain differ form the food chain such as: plants → goat → man?
→
The diagram shows a dish antenna which is used to receive television signals from a satellite. The antenna (signal detector) is fixed in front of the curved dish.
  1. What is the purpose of the dish?
  2. Should it be concave or convex?
  3. Where should the antenna be positioned to receive the strongest possible signals?
  4. Explain what change you would expect in the signals if a larger dish was used.
→
Gas A, which is the major cause of global warming, combines with hydrogen oxide $B$ in nature in the presence of an environmental factor $C$ and a green material $D$ to form a six carbon organic compounds $E$ and a gas $F$. The gas $F$ is necessary for breathing.
  1. What is gas $A?$
  2. What is the common name of $B?$
  3. What do you think could be $C?$
  4. What is material $D?$ Where is it found$?$
  5. Name the organic compound $E.$
  6. What is gas $F? $ Name the natural process during which it is released.
→
What are the demerits of Mendeleev's periodic table?
→
What is saponification?
→
 A tennis ball is thrown up and reaches a height of $4.05 m$ before coming down. What was its initial velocity? How much total time will it take to come down? Assume $g =10 m / s ^2$ ?
→
Explain: In the ecosystem wild animals like lions, tigers, are important.
→
During the respiration of an organism A, 1 molecule of glucose produces 2 ATP molecules whereas in the respiration of another organism B, 1 molecule of glucose produces 38 ATP molecules.
  1. Which organism is undergoing aerobic respiration?
  2. Which organism is undergoing anaerobic respiration?
  3. Which type of organism, A or B, can convert glucose into alcohol?
  4. Name one organism which behaves like A.
  5. Name two organisms which behave like B.
→
What are the various advantages of water stored in ground?
→