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प्रश्न
Give one disadvantage of using a solar cell.
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उत्तर
One disadvantage of solar cell is listed below:
i. The initial cost of a solar panel is sufficiently high.
संबंधित प्रश्न
A light mass and a heavy mass have equal momentum. Which will have more kinetic energy?
(Hint : Kinetic energy K = P2/2m where P is the momentum.)
Name six different forms of energy?
Select the renewable and non-renewable sources of energy from the following:
Wind
Name three non-renewable sources of energy.
The following are some of the energy transformations.
A. Electrical to light
B. Work to heat
C. Chemical to light
D. Electrical to sound
E. Mechanical to electrical
Identify the energy transformation that takes place in the following by inserting the corresponding letter in the shape provided.
(i) A candle flame
(ii) A torch is lighted
(iii) A microphone is used in a meeting
(iv) A cycle dynamo
(v) A piece of metal is being filed
Calculate the decrease in the kinetic energy of a moving body if its velocity reduces to half of the initial velocity.
What kind of energy is possessed in a situation when?
A horse running along a level road
Give one example when:
Kinetic energy to potential energy.
What are the small particles that can be seen in a beam of light that enters a dark room?
You do not have rangoli powder. What things can you use as an alternative?
